CN110328988A - Magnetic writing board component and meeting writing device - Google Patents
Magnetic writing board component and meeting writing device Download PDFInfo
- Publication number
- CN110328988A CN110328988A CN201910746713.5A CN201910746713A CN110328988A CN 110328988 A CN110328988 A CN 110328988A CN 201910746713 A CN201910746713 A CN 201910746713A CN 110328988 A CN110328988 A CN 110328988A
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- China
- Prior art keywords
- magnetic
- accommodating chamber
- backboard
- pilot hole
- magnetic part
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K8/00—Pens with writing-points other than nibs or balls
- B43K8/22—Pens with writing-points other than nibs or balls with electrically or magnetically activated writing-points
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/008—Repeatedly-usable boards or tablets for writing or drawing with magnetic action
Landscapes
- Credit Cards Or The Like (AREA)
Abstract
A kind of magnetic writing board component and meeting writing device, it is related to writing device technical field, the magnetic writing board component includes clipboard and magnetic pen, clipboard includes: transparent panel, backboard, electromagnet, magnetic part and switch, transparent panel is connect with backboard, multiple accommodating chambers are formed between transparent panel and backboard, the length direction of accommodating chamber is obliquely installed relative to the lateral surface of transparent panel, the color of the inner sidewall of accommodating chamber and the color of magnetic part are different, magnetic part is located at accommodating chamber and can move along the length direction of accommodating chamber close to transparent panel or backboard, electromagnet is installed on backboard and is oppositely arranged with each accommodating chamber, switch is for making electromagnet be powered to attract magnetic part；Magnetic pen can attract magnetic part.The magnetic writing board component passes through the writing that switch can start electromagnet so that clipboard is presented and all eliminates, and it is convenient to operate, laborsaving, and applicable magnetic pen will not accumulate ink on clipboard.
Description
Technical field
The present invention relates to writing device fields, in particular to a kind of magnetic writing board component and meeting writing dress
It sets.
Background technique
Currently, writing on blank in conference process usually using oil pen, and use blackboard eraser or cloth by word
Mark erasing.
But, on the one hand, the blank general size that meeting uses is relatively large, thus by entire plate face after use,
The amount of labour needed for erasing out handwriting is larger, and the time need to be spent more, influences meeting process.On the other hand, it writes and wipes multiple
After wiping operation, the plate face of blank can generate a large amount of ink accumulation, and wiping will make ink dizzy dye on blank again, can not
Complete erasing out handwriting influences the use of blank.
Summary of the invention
The purpose of the present invention is to provide a kind of magnetic writing board component and meeting writing devices, can be convenient, high
Effect removal plate face writing.
The embodiment of the present invention is achieved in that
A kind of magnetic writing board component, comprising: clipboard and magnetic pen,
The clipboard includes: transparent panel, backboard, electromagnet, magnetic part and switch, the transparent panel and the back
Plate connection, is formed with multiple accommodating chambers, the length direction of the accommodating chamber is relative to described between the transparent panel and backboard
The lateral surface of transparent panel is obliquely installed, and the color of the inner sidewall of the accommodating chamber is different from the color of the magnetic part, described
Magnetic part is located at the accommodating chamber and can move along the length direction of the accommodating chamber close to the transparent panel or the back
Plate, the electromagnet are installed on the backboard and are oppositely arranged with each accommodating chamber, and the switch is for making the electromagnet
It is powered to attract the magnetic part；
The magnetic pen can attract the magnetic part.
In preferred embodiments of the present invention, the transparent panel is provided with the first pilot hole, and the backboard is provided with
Two pilot holes, first pilot hole are connected to second pilot hole to form the accommodating chamber.
In preferred embodiments of the present invention, the magnetic part is magnetic spheres, and first pilot hole and opening are opposite
A side end face be to away from the backboard direction protrude cambered surface.
In preferred embodiments of the present invention, the diameter of the magnetic part is less than the aperture of first pilot hole, described
The aperture in the aperture of the second pilot hole and first pilot hole.
In preferred embodiments of the present invention, bottom surface setting of first pilot hole away from one end of the backboard is limited
Position item, the section of the positive stop strip are triangle, the thickness of the positive stop strip be less than the aperture of first pilot hole with it is described
The difference of the diameter of magnetic part.
In preferred embodiments of the present invention, the accommodating chamber is divided into multiple groups, with the magnetic part organized in the accommodating chamber
Color is identical, and the magnetic part color in the accommodating chamber of difference group is different.
In preferred embodiments of the present invention, the magnetic pen includes penholder and nib, and the nib is installed on the pen
Bar, the nib are made of permanent magnet.
In preferred embodiments of the present invention, the backboard is made of plastics.
In preferred embodiments of the present invention, the transparent panel is glass plate.
A kind of meeting writing device comprising magnetic writing board component as described in the above technical scheme further includes branch
Frame, the clipboard in the magnetic writing board component are installed on the bracket.
The beneficial effect of the embodiment of the present invention is:
In original state, magnetic part is located at close to the side of backboard, due to the inner wall color and magnetic part color of accommodating chamber
Difference, and accommodating chamber is obliquely installed relative to transparent panel, therefore it is to accommodate the color of cavity wall that color, which is presented, in clipboard at this time.
Using magnetic pen when being write on transparent panel, when magnetic pen transparent panel surface slide, magnetic pen
Magnetic part in the corresponding accommodating chamber of movement routine is attracted to transparent panel side, these are attracted to transparent panel side
The color of magnetic part shows through transparent panel, and has blocked the color of the inner wall of accommodating chamber where it, so that saturating
Bright panel side is obviously shown and the consistent pattern of magnetic pen movement routine.
After starting switch, electromagnet, which is powered, generates magnetic field, and electromagnet is by magnetic field suction magnetic part, so that being located at saturating
The magnetic part of bright panel side is moved adjacent to the side of backboard, and the pattern being made of magnetic part is disappeared by transparent panel side therewith
It loses, clipboard returns to original state.
It is arranged such, on the one hand, all writings that can disposably eliminate on entire clipboard only need to be switched, it is quick to save
Power；On the other hand, this kind of magnetic pen will not be in transparent panel side product ink, so that handwriting erasing, which will not occur, does not influence book completely
Write the case where plate uses.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the main view of clipboard in magnetic writing board component provided in an embodiment of the present invention；
Fig. 2 is the partial enlarged view in Fig. 1 at A；
Fig. 3 is the side view of clipboard in magnetic writing board component provided in an embodiment of the present invention；
Fig. 4 is the partial sectional view of clipboard in magnetic writing board component provided in an embodiment of the present invention；
Fig. 5 is the relative position of magnetic part and accommodating chamber signal in magnetic writing board component provided in an embodiment of the present invention
Figure；
Fig. 6 is the structural schematic diagram of magnetic pen in magnetic writing board component provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of meeting writing device provided in an embodiment of the present invention.
In figure:
100- clipboard；110- transparent panel；120- backboard；130- electromagnet；140- magnetic part；150- is opened
It closes；160- accommodating chamber；The first pilot hole of 161-；The second pilot hole of 162-；163- positive stop strip；
200- magnetic pen；210- penholder；220- nib；
300- bracket；310- pen container；320- idler wheel.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed by a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is that the magnetic writing board component of indication or suggestion meaning or element must have a particular orientation, constructed and grasped with specific orientation
Make, therefore is not considered as limiting the invention.It is retouched in addition, term " first ", " second ", " third " etc. are only used for distinguishing
It states, is not understood to indicate or imply relative importance.
In addition, the terms such as term "horizontal", "vertical", " pendency " are not offered as requiring component abswolute level or pendency, and
It is that can be slightly tilted.It is not to indicate the structure if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It has to fully horizontally, but can be slightly tilted.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
With reference to the accompanying drawing, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
First embodiment
Fig. 1-Fig. 6 is please referred to, the present embodiment provides a kind of 100 components of magnetic writing board, comprising: clipboard 100 and magnetism
Pen, in which:
Clipboard 100 includes: transparent panel 110, backboard 120, electromagnet 130, magnetic part 140 and switch 150, transparent side
Plate 110 is connect with backboard 120, and multiple accommodating chambers 160, the length of accommodating chamber 160 are formed between transparent panel 110 and backboard 120
Degree direction is obliquely installed relative to the lateral surface of transparent panel 110, and the color of the inner sidewall of accommodating chamber 160 and magnetic part 140
Color it is different.(Fig. 4 is to overlook effect) as shown in Figure 4, it is preferable that the central axes of accommodating chamber 160 (that is to say accommodating chamber 160
Length direction) it is with respect to the horizontal plane parallel, the lateral surface relative to transparent panel 110 is obliquely installed.
Magnetic part 140 is located at accommodating chamber 160 and can move along the length direction of accommodating chamber 160 close to transparent panel 110
Or backboard 120, electromagnet 130 are installed on backboard 120 and are oppositely arranged with each accommodating chamber 160, switch 150 is for making electromagnet
130 are powered to attract magnetic part 140.
Magnetic pen can attract magnetic part 140.
For example, the inner wall of accommodating chamber 160 can be white, and magnetic part 140 is black, so set, original state,
White, as blank is presented in clipboard 100, in writing process, presents on clipboard 100 and is made of black magnetic part 140
Blackness handwriting.
In addition, magnetic part 140 can also be other colors in addition to white, the color in each accommodating chamber 160 can be identical
It can also be different.
In a specific embodiment, accommodating chamber 160 is divided for multiple groups, the same face for organizing the magnetic part 140 in accommodating chamber 160
Color is identical, and 140 color of magnetic part in the accommodating chamber 160 of difference group is different.For example, by the accommodating chamber in clipboard 100
160 points are 4 groups, are referred to as first group of accommodating chamber, 160, second groups of accommodating chambers 160, third group accommodating chamber 160 and the 4th group of appearance
Receive chamber 160, the magnetic part 140 in first group of accommodating chamber 160 is red, and the magnetic part 140 in second group of accommodating chamber 160 is green
Color, the magnetic part 140 in third group accommodating chamber 160 are blue, and the magnetic part 140 in the 4th group of accommodating chamber 160 is yellow.Then make
With magnetic pen when streaking on clipboard 100, the writing being made of magnetic part 140 showed on clipboard 100 can be
One of red, green, blue, Huang color, or be composed for two kinds, three kinds or four kinds colors in above-mentioned four kinds of colors.
In a kind of specific embodiment of the present embodiment, electromagnet 130 can be connected with conducting wire, and one end of conducting wire is provided with
Plug, after plug is inserted into extraneous socket, by lower switch 150, electromagnet 130 is powered, to generate magnetic field, magnetic field suction is magnetic
Part 140 is moved adjacent to the side of electromagnet 130.
Alternatively, clipboard 100 further includes power supply mechanism, power supply mechanism includes battery or battery pack, power supply mechanism, switch
It is connected in series between 150 and electromagnet 130, after pressing lower switch 150, electromagnet 130 is connected with power supply mechanism, and power supply mechanism is
Electromagnet 130 is powered.
Magnetic pen can be multiple structural forms, for example, magnetic pen can integrally be made of magnet, and magnetic pen can be circle
Column or lip pencil, in order to grasp.
Alternatively, magnetic pen can be part structure made of magnet, such as:
In the preferable embodiment of the embodiment of the present invention, magnetic pen includes penholder 210 and nib 220, and nib 220 is installed
In penholder 210, nib 220 is made of permanent magnet.
In the present embodiment, transparent panel 110 is made of transparent hard material, in order to write, such as transparent plastic
Plate, transparency glass plate etc..Transparent panel 110 is preferably glass plate, so set, smoothness is higher when writing, and passes through glass
The colour developing degree of the color for the magnetic part 140 that glass plate is shown is higher.
In the present embodiment, backboard 120 can be by the metal, nonmetallic, composite material or organic synthesis of nonferromagnetic material
The materials such as high molecular material are made.Preferably, backboard 120 is made of plastics, such as uses PC (Polycarbonate, poly- carbonic acid
Ester) manufacture.
In a specific embodiment, accommodating chamber 160 is formed in backboard 120, and accommodating chamber 160 is towards transparent panel
110 end face be it is transparent, the inner sidewall of accommodating chamber 160 is nontransparent, and can specifically to lead to 140 different colours of magnetic part
The inner sidewall crossed in accommodating chamber 160 coats colored paint vehicle formation coloured coating.
Alternatively, in a preferred embodiment, accommodating chamber 160 consists of two parts, 161 He of respectively the first pilot hole
Second pilot hole 162, transparent panel 110 are provided with the first pilot hole 161, and backboard 120 is provided with the second pilot hole 162, and first
Opening and the open butt joint of the second pilot hole 162 of pilot hole 161, and the first pilot hole 161 be connected to the second pilot hole 162 with
Form accommodating chamber 160.Specifically, it is provided with multiple first pilot holes 161 on transparent panel 110, is provided on backboard 120 multiple
Second pilot hole 162, the first pilot hole 161 is equal with the quantity of the second pilot hole 162, and corresponds, one first guiding
Hole 161 is one group with corresponding second pilot hole 162, and an accommodating chamber 160 is collectively formed.Wherein, the second pilot hole 162
Inner sidewall be the color different from magnetic part 140, the first pilot hole 161 can be fully transparent, or towards transparent
The end face in the direction in 110 outside of panel is transparent, the colored painting identical with 161 color of the first pilot hole of coating in side wall one week
Layer.
For example, in Fig. 4, accommodating chamber 160 is combined to form by the first pilot hole 161 and the second pilot hole 162, empty in figure
Line is the line of demarcation of the first pilot hole 161 and the second pilot hole 162, and left side of dotted line is the first pilot hole 161, right side of dotted line
It is the second pilot hole 162.Along the central axes direction of accommodating chamber 160, the length of the first pilot hole 161 is greater than the second pilot hole
162 length, the total length of accommodating chamber 160 are greater than two times of the diameter of magnetic part 140, the central axes of accommodating chamber 160 with it is transparent
Angle between the lateral surface of panel 110 is 45 degree.Backboard 120 can be used colored plastic production, so set, without again to
Second pilot hole, 162 inside carries out pigment spraying operation, production easy to produce, high production efficiency again.
First pilot hole 161 is set on transparent panel 110, magnetic part 140 is reached closer to transparent side
The region of the lateral surface of plate 110 so that the writing on clipboard 100 show it is relatively sharp.
As shown in Figure 1, Figure 2 and Figure 4, in a kind of preferred arrangement, magnetic part 140 is magnetic spheres, the first guiding
Hole 161 and the opposite side end face that is open are the cambered surface protruded to the direction away from backboard 120.Specifically, the cross of accommodating chamber 160
Section is oblong, and longitudinal section can be square, or it is round, it is preferably circular.Since magnetic part 140 is magnetism
Sphere, thus it is small in the frictional force generated between the side wall of accommodating chamber 160 in moving process, therefore in smaller attraction masterpiece
It is also moved under.Since the end face of the first pilot hole 161 is cambered surface, may make between magnetic part 140 and the end face
Contact area increases.
Preferably, aperture of the diameter of magnetic part 140 less than the first pilot hole 161, the aperture of the second pilot hole 162 and the
The aperture of one pilot hole 161.So set, being moved convenient for magnetic part 140 along the first pilot hole 161 and the second pilot hole 162, move
It moves more smoothly.
For example, the diameter of magnetic part 140 can be the one third in the aperture of the first pilot hole 161.
As shown in figure 5, the first pilot hole 161 deviates from the one of backboard 120 in a kind of preferred embodiment of the present embodiment
The bottom surface at end is provided with positive stop strip 163, and the section of positive stop strip 163 is triangle, and the thickness of positive stop strip 163 is less than the first pilot hole
The difference in 161 aperture and the diameter of magnetic part 140.Specifically, positive stop strip 163 is disposed in proximity to one end of transparent panel 110,
When magnetic part 140 is attracted to by magnetic pen close to 110 one end of transparent panel, magnetic part 140 and positive stop strip 163 are towards transparent side
The side of 110 side of plate contacts, and positive stop strip 163 gives the certain resistance of magnetic part 140, to avoid spherical magnetic part 140 to backboard
120 side rolls.And when magnetic part 140 is by external force (i.e. the attraction of magnetic pen or electromagnet 130), the two sides side of locating part
Face is slope surface, is rolled through convenient for magnetic part 140.
The apex angle of positive stop strip 163 is obtuse angle, it is preferable that the apex angle of positive stop strip 163 is greater than 120 degree, so set, making it
The gradient of two sides is smaller, passes through convenient for magnetic part 140.
The planform of magnetic part 140 and accommodating chamber 160 is not limited to above structure shape, can also be other shapes, lift
For example, in a kind of embodiments possible of the present embodiment, accommodating chamber 160 is rectangular cavity, and magnetic part 140 is rectangular block shape knot
Structure.
Second embodiment
As shown in fig. 7, the present embodiment provides a kind of meeting writing devices comprising the magnetic that above-mentioned first embodiment provides
Property clipboard component, further includes bracket 300, the clipboard in magnetic writing board component is installed on bracket 300.
When it is implemented, bracket 300 include at least one crossbeam and at least two support rods, crossbeam be connected to support rod it
Between, with connection support bar.Clipboard is fixedly connected with support rod, and specifically, clipboard can be bolted with support rod,
It can be connected by supplementary structures such as clips.When clipboard is in use state, clipboard and horizontal plane.
In Fig. 7, bracket 300 includes two support rods and two crossbeams, and the both ends of crossbeam connect with two support rods respectively
It connects, two crossbeams are parallel and are arranged at intervals between two support rods.When clipboard is fixed to bracket 300, clipboard
It is contacted at the top of bottom and the crossbeam being located above, crossbeam plays a supporting role for clipboard.The two sides of clipboard lead to respectively
Screw is crossed to connect with two support rods.
For bracket 300 easy to remove and clipboard, it is preferable that the bottom of bracket 300 is provided with idler wheel 320, in order to
Bracket 300 is pushed to drive clipboard mobile.
Further, be installed with brake block on idler wheel 320, it is mobile in place after, by brake block fixed idler whell 320, from
And fix the position of bracket 300.
In a specific embodiment, magnetic pen 200 can be placed on crossbeam, alternatively, the back side in clipboard is set
Card slot is set, magnetic pen 200 is inserted into card slot, in order to take.
It in another embodiment specific implementation mode, can be by magnetic pen as shown in fig. 7, being connected with pen container 310 on bracket 300
In 200 insertion pen containers 310.
Specifically, the connection type between pen container 310 and bracket 300 can for it is Nian Jie, weld, be spirally connected.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of magnetic writing board component characterized by comprising clipboard and magnetic pen,
The clipboard includes: transparent panel, backboard, electromagnet, magnetic part and switch, and the transparent panel and the backboard connect
It connects, multiple accommodating chambers is formed between the transparent panel and backboard, the length direction of the accommodating chamber is relative to described transparent
The lateral surface of panel is obliquely installed, and the color of the inner sidewall of the accommodating chamber is different from the color of the magnetic part, the magnetism
Part is located at the accommodating chamber and can move along the length direction of the accommodating chamber close to the transparent panel or the backboard, institute
Electromagnet is stated to be installed on the backboard and be oppositely arranged with each accommodating chamber, the switch for so that the electromagnet is powered with
Attract the magnetic part；
The magnetic pen can attract the magnetic part.
2. magnetic writing board component according to claim 1, which is characterized in that the transparent panel is provided with the first guiding
Hole, the backboard are provided with the second pilot hole, and first pilot hole is connected to second pilot hole to form the receiving
Chamber.
3. magnetic writing board component according to claim 2, which is characterized in that the magnetic part is magnetic spheres, described
First pilot hole and the opposite side end face that is open are the cambered surface protruded to the direction away from the backboard.
4. magnetic writing board component according to claim 3, which is characterized in that the diameter of the magnetic part is less than described the
The aperture of one pilot hole, the aperture in the aperture of second pilot hole and first pilot hole.
5. magnetic writing board component according to claim 3, which is characterized in that first pilot hole deviates from the backboard
The bottom surface of one end be provided with positive stop strip, the section of the positive stop strip is triangle, and the thickness of the positive stop strip is less than described the
The difference of the diameter of the aperture of one pilot hole and the magnetic part.
6. magnetic writing board component according to claim 1, which is characterized in that the accommodating chamber is divided into multiple groups, with group institute
The color for stating the magnetic part in accommodating chamber is identical, and the magnetic part color in the accommodating chamber of difference group is different.
7. magnetic writing board component according to claim 1, which is characterized in that the magnetic pen includes penholder and nib,
The nib is installed on the penholder, and the nib is made of permanent magnet.
8. magnetic writing board component according to claim 1, which is characterized in that the backboard is made of plastics.
9. magnetic writing board component according to claim 1, which is characterized in that the transparent panel is glass plate.
10. a kind of meeting writing device, which is characterized in that it includes the magnetic writing board as described in claim 1-9 is any
Component further includes bracket, and the clipboard in the magnetic writing board component is installed on the bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910746713.5A CN110328988A (en) | 2019-08-13 | 2019-08-13 | Magnetic writing board component and meeting writing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910746713.5A CN110328988A (en) | 2019-08-13 | 2019-08-13 | Magnetic writing board component and meeting writing device |
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| CN110328988A true CN110328988A (en) | 2019-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910746713.5A Pending CN110328988A (en) | 2019-08-13 | 2019-08-13 | Magnetic writing board component and meeting writing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112918161A (en) * | 2021-03-18 | 2021-06-08 | 毛一非 | Magnetic writing board and control method thereof |
| CN114347699A (en) * | 2022-01-12 | 2022-04-15 | 浙江农林大学暨阳学院 | Blackboard equipment for writing with help of magnetic powder |
| CN114596745A (en) * | 2022-03-07 | 2022-06-07 | 南昌工学院 | Listening training device is used to college english specialty |
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| CN112918161A (en) * | 2021-03-18 | 2021-06-08 | 毛一非 | Magnetic writing board and control method thereof |
| CN114347699A (en) * | 2022-01-12 | 2022-04-15 | 浙江农林大学暨阳学院 | Blackboard equipment for writing with help of magnetic powder |
| CN114596745A (en) * | 2022-03-07 | 2022-06-07 | 南昌工学院 | Listening training device is used to college english specialty |
| CN114596745B (en) * | 2022-03-07 | 2023-12-01 | 南昌工学院 | College english specialty is with hearing trainer |
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