CN109099274A - A kind of multimedia teaching portable projector rotating device - Google Patents
A kind of multimedia teaching portable projector rotating device Download PDFInfo
- Publication number
- CN109099274A CN109099274A CN201811219485.8A CN201811219485A CN109099274A CN 109099274 A CN109099274 A CN 109099274A CN 201811219485 A CN201811219485 A CN 201811219485A CN 109099274 A CN109099274 A CN 109099274A
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- China
- Prior art keywords
- main support
- support
- rotating device
- movable plate
- multimedia teaching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000033001 locomotion Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 208000002925 dental caries Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/041—Allowing quick release of the apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/38—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by folding, e.g. pivoting or scissors tong mechanisms
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Abstract
The invention discloses a kind of multimedia teaching portable projector rotating devices, including main support and snap-gauge；The lower end of the main support is provided with the groove for placing secondary support, the inner wall of secondary support and groove is hinged, and postive stop baffle is provided at the link position of secondary support and groove, the receiving block for being used to support projector main body is symmetrically arranged on the inside of main support, threaded rod is rotatably equipped on the main support, one end of threaded rod a main support and is fixed therethrough with the first handwheel, screw shell is threaded on threaded rod, the lower end of screw shell is rotatably equipped with mounting blocks.It is of the invention novel in design, pass through the first hand wheel rotating threaded rod, threaded rod is adjusted projector main body by the effect of screw shell and connecting rod when rotating, to realize the rotation of projector main body, it is easy to adjust, and the stability after adjusting is high, movable plate directly can be withdrawn fitting main support when not in use, it does not take up space, it is easy to carry.
Description
Technical field
The present invention relates to multimedia technology field, specifically a kind of multimedia teaching portable projector rotating device.
Background technique
Projector be it is a kind of the profile of workpiece is amplified using optical element, and the optics instrument being projected on shadow screen
Device.It can make profile measurement with transmitted light, it is also possible to the surface shape and observation piece surface of reflected light measurement blind hole.Projection
The particularly suitable measurement complex outline of instrument and tiny workpiece, as clock and watch part, punching parts, electronic component, template, mold, screw thread,
Gear and molding cutter etc., checkability is high, easy to use；It is widely used in measuring room, workshop, to instrument and meter and clock
Table row industry is especially suitable.
Projector, also known as projector are a kind of equipment that can be projected image or video on curtain, can be by not
The same computer of interface together, VCD, DVD, BD, game machine, DV etc., which are connected, plays corresponding vision signal.
When carrying out image or video projects, angular adjustment, existing rotation need to be carried out to projector with using rotating device
For rotary device after carrying out angular adjustment, stability is low, and after a period of use, angle is easy to happen variation, while existing rotation
Rotary device size is fixed, and is unfavorable for carrying, there are drawbacks.
Summary of the invention
The purpose of the present invention is to provide a kind of multimedia teaching portable projector rotating devices, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of multimedia teaching portable projector rotating device, including main support and snap-gauge；Under the main support
End is provided with groove for placing secondary support, and the inner wall of secondary support and groove is hinged, and the link position of secondary support and groove
Place is provided with postive stop baffle, and the receiving block for being used to support projector main body, the main support are symmetrically arranged on the inside of main support
On be rotatably equipped with threaded rod, one end of threaded rod a main support and is fixed, spiral shell on threaded rod therethrough with the first handwheel
Line is connected with screw shell, and the lower end of screw shell is rotatably equipped with mounting blocks, and mounting blocks are by connecting rod and are mounted on activity
Spherical parts connection on plate, the snap-gauge are symmetrically mounted on the both ends of movable plate.
As a further solution of the present invention: the setting triangular in shape of the vertical tangent plane of the receiving block and receiving block and main support
It is rotatablely connected, is mounted on rubber layer on three faces of receiving block.
As further scheme of the invention: the both ends of the connecting rod are hinged with mounting blocks and spherical parts respectively.
As further scheme of the invention: the upper end of the screw shell is fixed with T-shaped slider, T-shaped slider sliding
It is connected in the sliding slot on setting and main support.
As further scheme of the invention: the upper end of the main support is fixed with lift-pull handle.
As further scheme of the invention: being respectively and fixedly provided with bar shaped tooth plate, two items on the symmetrically arranged snap-gauge
Shape tooth plate is oppositely arranged in the cavity being arranged in movable plate, is engaged between two be oppositely arranged bar shaped tooth plate and second-hand
Take turns fixed gear.
As further scheme of the invention: being fixed with ring slider, ring slider in the rear end shaft of the gear
It is slidably mounted in the guide groove being set on movable plate, it is at the position that gear rear end shaft is connect with the ring slider and movable
Plate is connected by spring.
As further scheme of the invention: circular rings are further fixed in the rear end shaft of the gear, circular rings
Outside is provided with the ratchet being fixed on movable plate, is equipped with pawl by torsional spring in circular rings.
As further scheme of the invention: the lower end of the main support and secondary support is mounted on rubber pad, main branch
The placing groove for being clamped movable plate is provided on frame.
Compared with prior art, the beneficial effects of the present invention are:
1, snap-gauge is symmetrically mounted on the both ends of movable plate, plays the role of gripping to projector main body, passes through first
Hand wheel rotating threaded rod, threaded rod are adjusted projector main body by the effect of screw shell and connecting rod when rotating, from
And realize the rotation of projector main body, it is easy to adjust, and the stability after adjusting is high, can directly withdraw movable plate when not in use
It is bonded main support, is not taken up space, it is easy to carry, it solves existing projector main body rotating device and is carrying out rotation angular adjustment
Rear stability is low, and not readily portable problem；
2, the one-directional rotation of gear is realized by the pawl of setting and ratchet cooperation, therefore after clamping projector main body,
It cannot be loosened after, clamping is stablized, and when needing lower projector main body, only need to pull the second handwheel, gear is de- at this time
From bar shaped tooth plate, projector main body can be removed freely.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of multimedia teaching portable projector rotating device.
Fig. 2 is the side sectional view of main support in multimedia teaching portable projector rotating device.
Fig. 3 is the cross-sectional view of movable plate in multimedia teaching portable projector rotating device.
Fig. 4 is the sectional view in the direction A-A in multimedia teaching portable projector rotating device.
Fig. 5 is the structural schematic diagram of ratchet in multimedia teaching portable projector rotating device.
In figure: 1- main support, 2- secondary support, 3- rubber pad, 4- projector main body, the first handwheel of 5-, 6- connecting rod, 7- ball
Shape part, 8- snap-gauge, 9- lift-pull handle, 10- sliding slot, 11-T shape sliding block, 12- screw shell, 13- movable plate, the second handwheel of 14-,
15- bar shaped tooth plate, 16- gear, 17- ratchet, 18- circular rings, 19- pawl, 20- ring slider, 21- spring, 22- guide groove, 23-
Threaded rod, 24- receiving block.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
Embodiment one
Please refer to Fig. 1-5, a kind of multimedia teaching portable projector rotating device, including main support 1 and snap-gauge 8；
The lower end of the main support 1 is provided with the groove for placing secondary support 2, and secondary support 2 and the inner wall of groove are hinged, and secondary support
2 be provided with postive stop baffle at the link position of groove, postive stop baffle plays the role of restriction to the rotational angle of secondary support 2,
The inside of main support 1 is symmetrically arranged with the receiving block 24 for being used to support projector main body 4, it is preferred that the receiving block 24 is erected
Section setting triangular in shape and receiving block 24 and main support 1 are rotatablely connected, is mounted on rubber layer on three faces of receiving block 24,
Rubber layer can increase the frictional force between receiving block 24 and projector main body 4, be rotatably equipped with threaded rod on the main support 1
23, one end of threaded rod 23 main support 1 and fixed with the first handwheel 5 therethrough is threaded with spiral shell on threaded rod 23
Line sleeve 12, the lower end of screw shell 12 are rotatably equipped with mounting blocks, and mounting blocks are by connecting rod 6 and are mounted on movable plate 13
Spherical parts 7 connect, it is preferred that the both ends of the connecting rod 6 are hinged with mounting blocks and spherical parts 7 respectively, and the snap-gauge 8 is symmetrical
The both ends of movable plate 13 are mounted on, play the role of gripping to projector main body 4, threaded rod is rotated by the first handwheel 5
23, threaded rod 23 is adjusted projector main body 4 by the effect of screw shell 12 and connecting rod 6 when rotating, to realize
The rotation of projector main body, it is easy to adjust, and the stability after adjusting is high, can directly withdraw movable plate 13 and be bonded when not applicable
Main support 1, does not take up space, easy to carry, solves existing 4 rotating device of projector main body after carrying out rotation angular adjustment
Stability is low, and not readily portable problem.
Preferably, the upper end of the screw shell 12 is fixed with T-shaped slider 11, T-shaped slider 11 be slidably connected at setting with
In sliding slot 10 on main support 1, T-shaped slider 11 and sliding slot 10 are slidably connected and play position-limiting action to screw shell 12, so that spiral shell
The movement of 12, line sleeve progress left and right directions.
It should be noted that the spherical parts 7 are flexibly connected with movable plate 13, understand for convenience, the application is to this progress
It is described in detail, specifically, being provided with spherical cavity on the movable plate 13, the upper end of spherical cavity is openning shape, shape at aperture position
At circular diameter be less than the diameter of spherical cavity, the part of spherical parts 7 is placed in spherical cavity, and another part leaks out ball by opening
Shape chamber, the diameter of spherical parts 7 is also greater than diameter of a circle is formed at aperture position, to realize that spherical parts 7 and movable plate 13 can
Carry out multi-angle, multi-faceted adjusting.
In order to further facilitate the carrying of the device, specifically, the upper end of the main support 1 is fixed with lift-pull handle 9.
Preferably, bar shaped tooth plate 15 is respectively and fixedly provided on the symmetrically arranged snap-gauge 8, two bar shaped tooth plates 15 are in movable plate
It is oppositely arranged, is engaged between two be oppositely arranged bar shaped tooth plate 15 and the fixation of the second handwheel 14 in the cavitys being arranged in 13
Gear 16 drives two bar shaped tooth plates 15 to move toward one another or reverse motions, to realize by 14 rotate gear 16 of the second handwheel
The projector main body 4 of different size clamps.
In order to effectively prevent snap-gauge 8 to loosen, specifically, ring slider 20 is fixed in the rear end shaft of the gear 16,
Ring slider 20 is slidably mounted in the guide groove 22 being set on movable plate 13,16 rear end shaft of gear and the ring slider 20
It is connect with movable plate 13 by spring 21 at the position of connection, spring 21 plays reset response, can by pulling the second handwheel 14
Realize that gear 16 is detached from bar shaped tooth plate 15, be further fixed on circular rings 18 in the rear end shaft of the gear 16, circular rings 18 it is outer
Side is provided with the ratchet 17 being fixed on movable plate 13, is equipped with pawl 19, pawl 19 and ratchet by torsional spring in circular rings 18
The one-directional rotation of gear 16 is realized in 17 cooperations, therefore after clamping projector main body 4, cannot be loosened after, and clamping is stablized,
When needing lower projector main body 4, the second handwheel 14 only need to be pulled, gear 16 is detached from bar shaped tooth plate 15 at this time.
Embodiment two
A kind of multimedia teaching portable projector rotating device, including main support 1 and snap-gauge 8；The main support 1
Lower end is provided with the groove for placing secondary support 2, and secondary support 2 and the inner wall of groove are hinged, and the connection of secondary support 2 and groove
Postive stop baffle is provided at position, postive stop baffle plays the role of restriction, the inside of main support 1 to the rotational angle of secondary support 2
It is symmetrically arranged with the receiving block 24 for being used to support projector main body 4, it is preferred that the vertical tangent plane of the receiving block 24 is triangular in shape to be set
It sets and receiving block 24 and main support 1 is rotatablely connected, be mounted on rubber layer on three faces of receiving block 24, rubber layer, which can increase, holds
The frictional force between block 24 and projector main body 4 is connect, is rotatably equipped with threaded rod 23 on the main support 1, the one of threaded rod 23
It holds a main support 1 therethrough and is fixed with the first handwheel 5, be threaded with screw shell 12, thread bush on threaded rod 23
The lower end of cylinder 12 is rotatably equipped with mounting blocks, and mounting blocks are connect by connecting rod 6 with the spherical parts 7 being mounted on movable plate 13,
Preferably, the both ends of the connecting rod 6 are hinged with mounting blocks and spherical parts 7 respectively, and the snap-gauge 8 is symmetrically mounted on movable plate 13
Both ends, play the role of gripping to projector main body 4, pass through the first handwheel 5 rotate threaded rod 23, threaded rod 23 rotate
When projector main body 4 is adjusted by the effect of screw shell 12 and connecting rod 6, to realize the rotation of projector main body
Turn, it is easy to adjust, and the stability after adjusting is high, movable plate 13 directly can be withdrawn fitting main support 1 when not applicable, not duty
Between, it is easy to carry, solve existing 4 rotating device of projector main body to carry out rotation angular adjustment rear stability low, and not
It is easy to carry.
Preferably, the upper end of the screw shell 12 is fixed with T-shaped slider 11, T-shaped slider 11 be slidably connected at setting with
In sliding slot 10 on main support 1, T-shaped slider 11 and sliding slot 10 are slidably connected and play position-limiting action to screw shell 12, so that spiral shell
The movement of 12, line sleeve progress left and right directions.
It should be noted that the spherical parts 7 are flexibly connected with movable plate 13, understand for convenience, the application is to this progress
It is described in detail, specifically, being provided with spherical cavity on the movable plate 13, the upper end of spherical cavity is openning shape, shape at aperture position
At circular diameter be less than the diameter of spherical cavity, the part of spherical parts 7 is placed in spherical cavity, and another part leaks out ball by opening
Shape chamber, the diameter of spherical parts 7 is also greater than diameter of a circle is formed at aperture position, to realize that spherical parts 7 and movable plate 13 can
Carry out multi-angle, multi-faceted adjusting.
In order to further facilitate the carrying of the device, specifically, the upper end of the main support 1 is fixed with lift-pull handle 9.
Preferably, bar shaped tooth plate 15 is respectively and fixedly provided on the symmetrically arranged snap-gauge 8, two bar shaped tooth plates 15 are in movable plate
It is oppositely arranged, is engaged between two be oppositely arranged bar shaped tooth plate 15 and the fixation of the second handwheel 14 in the cavitys being arranged in 13
Gear 16 drives two bar shaped tooth plates 15 to move toward one another or reverse motions, to realize by 14 rotate gear 16 of the second handwheel
The projector main body 4 of different size clamps.
In order to effectively prevent snap-gauge 8 to loosen, specifically, ring slider 20 is fixed in the rear end shaft of the gear 16,
Ring slider 20 is slidably mounted in the guide groove 22 being set on movable plate 13,16 rear end shaft of gear and the ring slider 20
It is connect with movable plate 13 by spring 21 at the position of connection, spring 21 plays reset response, can by pulling the second handwheel 14
Realize that gear 16 is detached from bar shaped tooth plate 15, be further fixed on circular rings 18 in the rear end shaft of the gear 16, circular rings 18 it is outer
Side is provided with the ratchet 17 being fixed on movable plate 13, is equipped with pawl 19, pawl 19 and ratchet by torsional spring in circular rings 18
The one-directional rotation of gear 16 is realized in 17 cooperations, therefore after clamping projector main body 4, cannot be loosened after, and clamping is stablized,
When needing lower projector main body 4, the second handwheel 14 only need to be pulled, gear 16 is detached from bar shaped tooth plate 15 at this time.
In order to increase the stability after main support 1 is placed, specifically, the lower end of the main support 1 and secondary support 2 is respectively mounted
There is rubber pad 3, in order to further increase the portability of the device, specifically, being provided on the main support 1 for being clamped activity
The placing groove of plate 13 (is not shown in the figure, the structure of placing groove clamping movable plate 3 belongs to prior art application and and is not belonging to this Shen
Core technical features please).
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
It makes a variety of changes.
Claims (9)
1. a kind of multimedia teaching portable projector rotating device, including main support (1) and snap-gauge (8)；It is characterized in that,
The lower end of the main support (1) is provided with the groove for placing secondary support (2), and secondary support (2) and the inner wall of groove are hinged, and
It is provided with postive stop baffle at the link position of secondary support (2) and groove, is symmetrically arranged on the inside of main support (1) and is used to support throwing
The receiving block (24) of shadow instrument ontology (4) is rotatably equipped with threaded rod (23) on the main support (1), one end of threaded rod (23)
A main support (1) and fixed with the first handwheel (5) therethrough, is threaded with screw shell (12) on threaded rod (23),
The lower end of screw shell (12) is rotatably equipped with mounting blocks, and mounting blocks are by connecting rod (6) and are mounted on movable plate (13)
Spherical parts (7) connection, the snap-gauge (8) are symmetrically mounted on the both ends of movable plate (13).
2. multimedia teaching according to claim 1 portable projector rotating device, which is characterized in that the undertaking
The setting triangular in shape of the vertical tangent plane of block (24) and receiving block (24) and main support (1) rotation connection, three faces of receiving block (24)
On be mounted on rubber layer.
3. multimedia teaching according to claim 1 portable projector rotating device, which is characterized in that the connection
The both ends of bar (6) are hinged with mounting blocks and spherical parts (7) respectively.
4. multimedia teaching according to claim 1 portable projector rotating device, which is characterized in that the screw thread
The upper end of sleeve (12) is fixed with T-shaped slider (11), and T-shaped slider (11) is slidably connected at the sliding slot on setting and main support (1)
(10) in.
5. multimedia teaching according to claim 1 portable projector rotating device, which is characterized in that the main branch
The upper end of frame (1) is fixed with lift-pull handle (9).
6. multimedia teaching according to claim 1 portable projector rotating device, which is characterized in that be symmetrical arranged
The snap-gauge (8) on be respectively and fixedly provided with bar shaped tooth plate (15), the cavity that two bar shaped tooth plates (15) are arranged in the movable plate (13)
It is inside oppositely arranged, the gear (16) fixed with the second handwheel (14) is engaged between two be oppositely arranged bar shaped tooth plate (15).
7. multimedia teaching according to claim 6 portable projector rotating device, which is characterized in that the gear
(16) it is fixed in rear end shaft ring slider (20), ring slider (20), which is slidably mounted on, to be set on movable plate (13)
In guide groove (22), pass through spring with movable plate (13) at the position that gear (16) rear end shaft is connect with the ring slider (20)
(21) it connects.
8. multimedia teaching according to claim 6 or 7 portable projector rotating device, which is characterized in that described
It is further fixed in the rear end shaft of gear (16) circular rings (18), is provided on the outside of circular rings (18) and is fixed on movable plate (13)
On ratchet (17), pawl (19) are equipped with by torsional spring in circular rings (18).
9. multimedia teaching according to claim 1 portable projector rotating device, which is characterized in that the main branch
The lower end of frame (1) and secondary support (2) is mounted on rubber pad (3), is provided on main support (1) for being clamped movable plate (13)
Placing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811219485.8A CN109099274A (en) | 2018-10-19 | 2018-10-19 | A kind of multimedia teaching portable projector rotating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811219485.8A CN109099274A (en) | 2018-10-19 | 2018-10-19 | A kind of multimedia teaching portable projector rotating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109099274A true CN109099274A (en) | 2018-12-28 |
Family
ID=64869169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811219485.8A Pending CN109099274A (en) | 2018-10-19 | 2018-10-19 | A kind of multimedia teaching portable projector rotating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109099274A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275221A (en) * | 2019-07-10 | 2019-09-24 | 浙江湖州天强建筑材料有限公司 | A kind of building engineering detection device |
| CN114046403A (en) * | 2021-11-04 | 2022-02-15 | 郭文 | Based on public welfare forest management and protection are with portable indicating device that has a warning function |
-
2018
- 2018-10-19 CN CN201811219485.8A patent/CN109099274A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275221A (en) * | 2019-07-10 | 2019-09-24 | 浙江湖州天强建筑材料有限公司 | A kind of building engineering detection device |
| CN114046403A (en) * | 2021-11-04 | 2022-02-15 | 郭文 | Based on public welfare forest management and protection are with portable indicating device that has a warning function |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181228 |
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| WD01 | Invention patent application deemed withdrawn after publication |