CN107899944A - One kind plus edge formula vibrating screen - Google Patents
One kind plus edge formula vibrating screen Download PDFInfo
- Publication number
- CN107899944A CN107899944A CN201711491283.4A CN201711491283A CN107899944A CN 107899944 A CN107899944 A CN 107899944A CN 201711491283 A CN201711491283 A CN 201711491283A CN 107899944 A CN107899944 A CN 107899944A
- Authority
- CN
- China
- Prior art keywords
- vibrating screen
- sieve
- screen framework
- framework
- electrostatic precipitator
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4663—Multi-layer screening surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses one kind plus edge formula vibrating screen,Including vibrating screen framework,Electrostatic precipitator,Fixed frame and base,The upper end of the vibrating screen framework is provided with upper end cover,Feed inlet is offered at the top of the upper end cover,The vibrating screen framework is internally provided with the first sieve and the second sieve,And the first sieve is arranged on the surface of the second sieve,With being provided with coarse fodder outlet on the first sieve relative horizontal position on the vibrating screen framework side side,With expecting to export in being provided with the second sieve relative horizontal position on the opposite side side of the vibrating screen framework,The underface of coarse fodder outlet is provided with fines outlet on the vibrating screen framework lateral surface,The side of the upper end cover is connected with sweep-up pipe,And the other end of sweep-up pipe is connected with being arranged on the electrostatic precipitator of vibrating screen framework side,The bottom of the electrostatic precipitator is provided with ash bucket.The present invention can automatic dust removing, highly practical, screening effect is good.
Description
Technical field
The present invention relates to screening installation technical field, is specially a kind of plus edge formula vibrating screen.
Background technology
Add edge formula vibrating screen using rotation type is vibrated and worked again caused by oscillator exciting, the upper rotation weight of oscillator
Compass screen surface is set to produce plane whirling vibration, and lower rotation weight then makes compass screen surface produce conical surface rotary vibration, the effect of its synergy
Then make compass screen surface produce again rotation type to vibrate.Its oscillation trajectory is a complicated space curve.The curve is projected as a circle in horizontal plane
Shape, and the exciting force for being projected as an ellipse, adjusting upper and lower rotation weight on the vertical plane, thus it is possible to vary amplitude, and adjust
The space phase angle of upper and lower weight, then can change the curve shape of compass screen surface movement locus and change the movement of material on compass screen surface
Track, is mainly used for the sieve classification of powder to feed intake by hand.
But existing plus edge formula vibrating screen has the following disadvantages：
Existing plus edge formula vibrating screen is used as during the sizing screening of the material with dust or ore more, to material or
When ore is screened, it can usually cause the dust in material to depart from material because of vibration, float in vibrating screen, be easy to cause vibration
Screen portion in sieve blocks, and influences screening effect, and dust is once drifted in air, and the lung of human body is caused greatly
Injury.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides one kind plus edge formula vibrating screen, solves existing technology screening
The timely dedustings of Shi Wufa, influence the problem of screening effect pollutes environment at the same time.
To achieve the above object, the present invention provides following technical solution：One kind plus edge formula vibrating screen, including vibration screen frame
Body, electrostatic precipitator, fixed frame and base, the upper end of the vibrating screen framework are provided with upper end cover, the top of the upper end cover
Feed inlet is offered, the vibrating screen framework is internally provided with the first sieve and the second sieve, and the first sieve is arranged on
The surface of two sieves, goes out with being provided with coarse fodder on the first sieve relative horizontal position on the vibrating screen framework side side
Mouthful, exported on the opposite side side of the vibrating screen framework with material in being provided with the second sieve relative horizontal position, it is described
The underface of coarse fodder outlet is provided with fines outlet on vibrating screen framework lateral surface, the side of the upper end cover is connected with dust suction
Pipe, and the other end of sweep-up pipe is connected with being arranged on the electrostatic precipitator of vibrating screen framework side, the electrostatic precipitator
Bottom is provided with ash bucket, is provided with suction pump on the sweep-up pipe, the electrostatic precipitator and suction pump by fixed frame with
Vibrating screen framework side side connects, and the bottom of the vibrating screen framework is provided with roof supporting, the lower section of the roof supporting
Support baseboard is provided with, support leg is uniformly installed between the roof supporting and support baseboard, and be provided with support leg
Damping spring, the bottom middle position of the vibrating screen framework are provided with vibrating motor, the upper and lower ends of the vibrating motor
Top weight and lower part weight are separately installed with, shown support baseboard is arranged on base, the outside of the vibrating screen framework
Controller is installed on face.
Preferably, the filtering bore dia of first sieve is more than the second screen filtration bore dia.
Preferably, the bottom of the base is evenly arranged with wear-resistant block, and wear-resistant block is rubber block.
Preferably, the lateral surface of the vibrating screen is provided with two maintenance doors.
Preferably, control button is installed on the controller, and controller respectively with electrostatic precipitator, suction pump and
Vibrating motor is electrically connected by conducting wire.
The present invention provides one kind plus edge formula vibrating screen, possesses following beneficial effect：
For the present invention by setting electrostatic precipitator, operating personnel open vibrating motor, vibration by the control button on movement controller
Motor oscillating simultaneously makes the first sieve and the second sieve produce again rotation type and vibrate by top weight and lower part weight, then needs
The material of screening is poured into vibrating screen framework by feed inlet, and then coarse fodder exports screening by coarse fodder into after crossing the first screen filtration
Go out, remaining material is fallen on the second sieve through the first sieve, after the screening of the second sieve middle material exported by middle material
Discharge, fines then fall into the bottom of vibrating screen framework through the second sieve, finally under the action of vibrating motor vibration, by fines
Outlet discharge, while depart from material body in microparticles such as the dust during vibration screening in material and float to vibrating screen framework
Inside, at this time, opens suction pump, the dust in vibrating screen framework is pumped into electrostatic precipitator by suction pump along sweep-up pipe, gas
When dust grit in stream passes through high-voltage electrostatic field, collide with interelectrode negative ions and electronics and charged, band powers on
The grit of son and ion anisotropy electrode movement and product is attached on opposite electrode under the action of electric field force, and eventually falls into collection
In ash bucket, dedusting and environmental protection are achieveed the purpose that by electrostatic precipitator, while also avoid dust from blocking strainer, influence screening
Effect.
Brief description of the drawings
Fig. 1 is the front view of the present invention；
Fig. 2 is the side view of the present invention.
In figure：Expect in 1 vibrating screen framework, 2 upper end covers, 3 feed inlets, 4 first sieves, 5 second sieves, the outlet of 6 coarse fodders, 7
Outlet, the outlet of 8 fineves, 9 sweep-up pipes, 10 electrostatic precipitator, 11 suction pumps, 12 fixed frames, 13 roof supportings, 14 support baseboards,
15 support legs, 16 damping springs, 17 vibrating motors, 18 top weights, 19 lower part weights, 20 bases, 21 wear-resistant blocks, 22 controls
Device, 23 maintenance doors, 24 ash buckets.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
As shown in Figs. 1-2, the present invention provides a kind of technical solution：One kind plus edge formula vibrating screen, including vibrating screen framework 1,
Electrostatic precipitator 10, fixed frame 12 and base 20, the upper end of vibrating screen framework 1 are provided with upper end cover 2, and the top of upper end cover 2 is opened
Equipped with feed inlet 3, vibrating screen framework 1 is internally provided with the first sieve 4 and the second sieve 5, and the first sieve 4 is arranged on second
The surface of sieve 5, with being provided with coarse fodder outlet on 4 relative horizontal position of the first sieve on 1 side side of vibrating screen framework
6, on the opposite side side of vibrating screen framework 1 with material outlet 7, vibrating screen in being provided with 5 relative horizontal position of the second sieve
The underface of coarse fodder outlet 6 is provided with fines outlet 8 on 1 lateral surface of framework, the side of upper end cover 2 is connected with sweep-up pipe 9, and
And the other end of sweep-up pipe 9 is connected with being arranged on the electrostatic precipitator 10 of 1 side of vibrating screen framework, the bottom of electrostatic precipitator 10
Ash bucket 24 is installed, suction pump 11 is installed on sweep-up pipe 9, electrostatic precipitator 10 and suction pump 11 are by fixed frame 12 with shaking
Dynamic 1 side side connection of screen frame body, the bottom of vibrating screen framework 1 are provided with roof supporting 13, and the lower section of roof supporting 13 is set
There is support baseboard 14, support leg 15 is uniformly installed, and installed in support leg 15 between roof supporting 13 and support baseboard 14
There is damping spring 16, the bottom middle position of vibrating screen framework 1 is provided with vibrating motor 17, the upper and lower ends of vibrating motor 17
Top weight 18 and lower part weight 19 are separately installed with, shown support baseboard 14 is arranged on base 20, vibrating screen framework 1
Controller 22 is installed, the filtering bore dia of the first sieve 4 is more than the second sieve 5 filtering bore dia, base 20 on lateral surface
Bottom is evenly arranged with wear-resistant block 21, and wear-resistant block 21 is rubber block, and rubber block has damping effect, vibrating screen framework 1
Lateral surface is provided with two maintenance doors 23, is provided with control button on controller 22, and controller 22 respectively with electrostatic precipitation
Device 10, suction pump 11 and vibrating motor 17 are electrically connected by conducting wire.
In use, staff opens vibrating motor 17 by the control button on movement controller 22, vibrating motor 17 vibrates
And the first sieve 4 and the second sieve 5 is produced again rotation type and is vibrated by top weight 18 and lower part weight 19, then need to sieve
The material of choosing is poured into vibrating screen framework 1 by feed inlet 3, and then coarse fodder is sieved by coarse fodder outlet 6 into after crossing the filtering of the first sieve 4
Go out, remaining material is fallen on the second sieve 5 through the first sieve 4, after the screening of the second sieve 5 middle material gone out by middle material
Mouth 7 is discharged, and fines then falls into the bottom of vibrating screen framework 1, the effect finally vibrated in vibrating motor 17 through the second sieve 5
Under, by 8 discharge of fines outlet, while depart from material body in microparticles such as the dust during vibration screening in material and float to
Inside vibrating screen framework 1, at this time, suction pump 11 is opened, the dust in vibrating screen framework 1 is pumped into by suction pump 11 along sweep-up pipe 9
Into electrostatic precipitator 10, when the dust grit in air-flow passes through high-voltage electrostatic field, sent out with interelectrode negative ions and electronics
Raw collision and it is charged, take the grit of electronics and ion anisotropy electrode movement and product under the action of electric field force and be attached to different in nature electricity
On extremely, and eventually fall into and collect in ash bucket 24.
It can to sum up obtain, the present invention can not be removed in time by setting electrostatic precipitator 10 when solving existing technology screening
Dirt, influences the problem of screening effect pollutes environment at the same time.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed, or further include as this process, method, article or equipment
Intrinsic key element.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of changes, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. one kind plus edge formula vibrating screen, including vibrating screen framework（1）, electrostatic precipitator（10）, fixed frame（12）And base（20）,
It is characterized in that：The vibrating screen framework（1）Upper end upper end cover is installed（2）, the upper end cover（2）Top offer into
Material mouth（3）, the vibrating screen framework（1）It is internally provided with the first sieve（4）With the second sieve（5）, and the first sieve（4）If
Put in the second sieve（5）Surface, the vibrating screen framework（1）On the side of side with the first sieve（4）Relative level position
Put and be provided with coarse fodder outlet（6）, the vibrating screen framework（1）Opposite side side on the second sieve（5）Relative level
Middle material outlet is provided with position（7）, the vibrating screen framework（1）Exported on lateral surface in coarse fodder（6）Underface be provided with
Fines exports（8）, the upper end cover（2）Side be connected with sweep-up pipe（9）, and sweep-up pipe（9）The other end with being arranged on
Vibrating screen framework（1）The electrostatic precipitator of side（10）Connection, the electrostatic precipitator（10）Bottom ash bucket is installed（24）,
The sweep-up pipe（9）On suction pump is installed（11）, the electrostatic precipitator（10）And suction pump（11）Pass through fixed frame
（12）With vibrating screen framework（1）Side side connects, the vibrating screen framework（1）Bottom be provided with roof supporting（13）, institute
State roof supporting（13）Lower section be provided with support baseboard（14）, the roof supporting（13）And support baseboard（14）Between uniformly
Support leg is installed（15）, and support leg（15）On damping spring is installed（16）, the vibrating screen framework（1）Bottom in
Between be provided with vibrating motor at position（17）, the vibrating motor（17）Upper and lower ends be separately installed with top weight（18）With
Lower part weight（19）, shown support baseboard（14）Be arranged on base（20）On, the vibrating screen framework（1）Lateral surface on pacify
Equipped with controller（22）.
A kind of 2. plus edge formula vibrating screen according to claim 1, it is characterised in that：First sieve（4）Filter hole
Diameter is more than the second sieve（5）Filter bore dia.
A kind of 3. plus edge formula vibrating screen according to claim 1, it is characterised in that：The base（20）Bottom uniformly set
It is equipped with wear-resistant block（21）, and wear-resistant block（21）For rubber block.
A kind of 4. plus edge formula vibrating screen according to claim 1, it is characterised in that：The vibrating screen framework（1）Outside
Face is provided with two maintenance doors（23）.
A kind of 5. plus edge formula vibrating screen according to claim 1, it is characterised in that：The controller（22）On control is installed
Button processed, and controller（22）Respectively with electrostatic precipitator（10）, suction pump（11）And vibrating motor（17）Pass through conducting wire electricity
Property connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711491283.4A CN107899944A (en) | 2017-12-30 | 2017-12-30 | One kind plus edge formula vibrating screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711491283.4A CN107899944A (en) | 2017-12-30 | 2017-12-30 | One kind plus edge formula vibrating screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107899944A true CN107899944A (en) | 2018-04-13 |
Family
ID=61872269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711491283.4A Pending CN107899944A (en) | 2017-12-30 | 2017-12-30 | One kind plus edge formula vibrating screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107899944A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108554799A (en) * | 2018-05-07 | 2018-09-21 | 新乡市东振机械制造有限公司 | A kind of building waste screening spin vibration sieve with anti-blockage function |
| CN109453986A (en) * | 2018-10-10 | 2019-03-12 | 芜湖天火新能源科技有限公司 | A kind of coal grain size sieving device |
| CN111530734A (en) * | 2020-05-17 | 2020-08-14 | 周强 | Screening device for grain processing and screening method thereof |
| CN115007450A (en) * | 2022-06-30 | 2022-09-06 | 杭州荣光钙业有限公司 | Shale shaker device is used in calcium hydrate production |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004097923A (en) * | 2002-09-09 | 2004-04-02 | Kuribayashi Seisakusho:Kk | Chick sorting apparatus |
| CN201558800U (en) * | 2009-12-04 | 2010-08-25 | 程玉明 | Tea vibrating round screening machine |
| CN203196876U (en) * | 2013-04-12 | 2013-09-18 | 湖北博大高科生物技术有限公司 | Efficient dust-free vibration sieve |
| CN205392943U (en) * | 2016-02-19 | 2016-07-27 | 中湘钨业股份有限公司 | Scheelite high frequency vibrating screen |
| CN208146383U (en) * | 2017-12-30 | 2018-11-27 | 新乡市振英机械设备有限公司 | One kind plus edge formula vibrating screen |
-
2017
- 2017-12-30 CN CN201711491283.4A patent/CN107899944A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004097923A (en) * | 2002-09-09 | 2004-04-02 | Kuribayashi Seisakusho:Kk | Chick sorting apparatus |
| CN201558800U (en) * | 2009-12-04 | 2010-08-25 | 程玉明 | Tea vibrating round screening machine |
| CN203196876U (en) * | 2013-04-12 | 2013-09-18 | 湖北博大高科生物技术有限公司 | Efficient dust-free vibration sieve |
| CN205392943U (en) * | 2016-02-19 | 2016-07-27 | 中湘钨业股份有限公司 | Scheelite high frequency vibrating screen |
| CN208146383U (en) * | 2017-12-30 | 2018-11-27 | 新乡市振英机械设备有限公司 | One kind plus edge formula vibrating screen |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108554799A (en) * | 2018-05-07 | 2018-09-21 | 新乡市东振机械制造有限公司 | A kind of building waste screening spin vibration sieve with anti-blockage function |
| CN109453986A (en) * | 2018-10-10 | 2019-03-12 | 芜湖天火新能源科技有限公司 | A kind of coal grain size sieving device |
| CN111530734A (en) * | 2020-05-17 | 2020-08-14 | 周强 | Screening device for grain processing and screening method thereof |
| CN115007450A (en) * | 2022-06-30 | 2022-09-06 | 杭州荣光钙业有限公司 | Shale shaker device is used in calcium hydrate production |
| CN115007450B (en) * | 2022-06-30 | 2024-05-31 | 浙江嘉宁环保新材料科技有限公司 | Vibrating screen device for calcium hydroxide production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107899944A (en) | One kind plus edge formula vibrating screen | |
| CN208146383U (en) | One kind plus edge formula vibrating screen | |
| CN107030081A (en) | A kind of used by oscillating screen feeds dustproof dust-collecting equipment | |
| CN212216176U (en) | Production and processing equipment for brown rice protein | |
| CN209005437U (en) | A kind of pitch dust precipitator | |
| CN106269517A (en) | A kind of corn automatic screening machine | |
| CN106362950A (en) | Rotational flow negative pressure sieve | |
| CN209006184U (en) | A kind of food processing screen selecting and separating mechanism | |
| CN206716695U (en) | A kind of used by oscillating screen feeds dustproof dust-collecting equipment | |
| CN107670977A (en) | Anti-blocking paper pulp vibratory sieve | |
| CN206897810U (en) | A kind of plastic grains layer-stepping vibratory sieve | |
| CN206168805U (en) | Cereal autofilter machine | |
| CN208912555U (en) | A kind of powdered seasonings vibrating screen | |
| CN210635434U (en) | Automatic charging device for Czochralski monocrystalline silicon re-feeding barrel | |
| CN113647476A (en) | Fu tea production line | |
| CN209613554U (en) | A kind of Multilayer vibrating screen | |
| CN208260951U (en) | A kind of grinding system of simple and efficient | |
| CN208906160U (en) | A kind of vibrating screen | |
| CN202238673U (en) | Combined air elutriator | |
| CN104190618B (en) | Screening conveyor for tea screening machine | |
| CN106475321A (en) | Proportion dressing machine | |
| CN206535752U (en) | A kind of suction specific-gravity stoner | |
| CN207446685U (en) | A kind of material spin vibration sieve | |
| CN206763356U (en) | A kind of Brown Alundum vibratory sieve | |
| CN206997043U (en) | A kind of vibratory sieve with dedusting function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180413 |
|
| WD01 | Invention patent application deemed withdrawn after publication |