CN108301574A - A kind of greenhouse film snow-removing device - Google Patents
A kind of greenhouse film snow-removing device Download PDFInfo
- Publication number
- CN108301574A CN108301574A CN201810299327.1A CN201810299327A CN108301574A CN 108301574 A CN108301574 A CN 108301574A CN 201810299327 A CN201810299327 A CN 201810299327A CN 108301574 A CN108301574 A CN 108301574A
- Authority
- CN
- China
- Prior art keywords
- snow
- scraping plate
- snow scraping
- greenhouse
- guide rail
- 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.)
- Withdrawn
Links
- 238000007790 scraping Methods 0.000 claims abstract description 81
- 230000033001 locomotion Effects 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000008635 plant growth Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 230000008121 plant development Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/10—Snow traps ; Removing snow from roofs; Snow melters
- E04D13/106—Snow removing devices
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/14—Greenhouses
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/14—Greenhouses
- A01G2009/1492—Cleaning apparatus
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Greenhouses (AREA)
Abstract
The technical issues of greenhouse film snow-removing device provided by the invention is for solving greenhouse film snow removing, structure includes：Guide rail, snow scraping plate, snow scraping plate drop-down driving device and snow scraping plate reset drives device；The position that the keel in the greenhouse are in contact with film is adapted with the shape of the guide rail；The setting quantity of the guide rail is multiple；The both ends of the guide rail are respectively arranged with the snow scraping plate drop-down driving device and snow scraping plate reset drives device；The snow scraping plate drop-down driving device and snow scraping plate reset drives device are fixedly connected by rope with the snow scraping plate；The snow scraping plate has the freedom of motion slided along the guide rail.Heretofore described greenhouse film snow-removing device has efficiency of cleaning snow height, technological merit of the snow removing without dead angle.
Description
Technical field
The present invention relates to greenhouse snow-clearing technique fields, more particularly, to a kind of greenhouse film snow-removing device.
Background technology
Greenhouse (greenhouse), also known as greenhouse, such as glasshouse, plastic green house；Single-ridgepole glasshouse, attached-greenhouse；Single room
Surface green house, double roof greenhouses；Heat greenhouse, unheating hothouse etc., energy light transmission, heat preservation (or heating), for setting for cultivated plant
It applies.Greenhouse structure answers sealing thermal insulation, but should be convenient for aeration-cooling.There are the items such as control humiture, illumination in modern greenhouse
The equipment of part automatically controls the optimal environmental condition created needed for plant with computer.In the season for being not suitable for plant growth, can carry
For greenhouse breeding time and increase yield, is chiefly used in the plant cultures such as low temperature season warm season vegetable, flowers, forest or nursery etc..Temperature
The type of room is more, can be divided into many types again according to different roof truss materials, lighting material, shape and heating condition etc..Greenhouse
Type includes planting greenhouse, cultivation greenhouse, display greenhouse, experiment greenhouse, food and drink greenhouse, amusement greenhouse etc.；Greenhouse System is set
Meter includes temperature-increasing system, heat-insulation system, cooling system, ventilating system, control system, irrigation system etc.；Greenhouse is only simple
Plastic film and skeleton structure knot, inner facility is seldom, not the height of green house requirement.Therefore narrowly, greenhouse is set than greenhouse
It is standby to require higher, more advanced instrument may be used and carry out stringent temperature control.
Greenhouse in the prior art is using daylighting covering material as all or part of space enclosing structure material, and above-mentioned daylighting is covered
Cover material is easily covered by ice and snow in winter, and then causes undesirable influence to the lighting heat-insulating in greenhouse.In actual use, people
The mode that manually removes the snow of generally use root out the accumulated snow in daylighting covering material.Since above-mentioned daylighting covering material is usual
More frivolous, structural strength is not high, therefore is easily punctured by clear snow instrument during snow removing, virtually increases the reparation in greenhouse
Cost.
Therefore it provides a kind of greenhouse film snow-removing device, light is damaged during efficiently can removing the snow and remove the snow
Covering material just becomes those skilled in the art's technical problem urgently to be resolved hurrily.
Invention content
The object of the present invention is to provide a kind of greenhouse film snow-removing devices, and the technology for solving greenhouse film snow removing is asked
Topic.
To achieve the goals above, the present invention provides a kind of greenhouse film snow-removing device, including：Guide rail, snow scraping plate scrape snow
Plate pulls down driving device and snow scraping plate reset drives device；The position that the keel in the greenhouse are in contact with film is led with described
The shape of rail is adapted；The setting quantity of the guide rail is multiple；The both ends of the guide rail are respectively arranged under the snow scraping plate
Draw driving device and snow scraping plate reset drives device；The snow scraping plate drop-down driving device and snow scraping plate reset drives device pass through
Rope is fixedly connected with the snow scraping plate；The snow scraping plate has the freedom of motion slided along the guide rail.
Preferably, the structure of the snow scraping plate includes：It is provided with leading truck, unidirectional swing arm and the hairbrush of directive wheel；It is described
Unidirectional swing arm and the leading truck are hinged, only have and are parallel to the freedom of motion that snow removing direction of feed is unidirectionally swung；The hair
It brushes and is fastenedly connected with the free end of the unidirectional swing arm.
Preferably, the snow scraping plate is by fastening the screw that is arranged on the leading truck, stop the unidirectional swing arm to
The freedom of motion that the direction opposite with snow removing direction of feed is swung.
Preferably, the guide rail is made of the metal tube of upper and lower spaced set.
Preferably, the snow scraping plate drop-down driving device and snow scraping plate reset drives device are respectively by driving motor and rope
Rope drum forms.
Preferably, it is provided with vibrating motor on the snow scraping plate.
Preferably, the snow scraping plate drop-down driving device and snow scraping plate reset drives device are respectively provided with overload protection
Device.
Preferably, snow scraping plate drop-down driving device and snow scraping plate reset drives device respectively by elastic sliding slot with
Greenhouse wall body is fixedly connected.
Preferably, further include controller, driving device is pulled down with the snow scraping plate respectively for the controller and snow scraping plate is multiple
Position driving device electrical connection.
Heretofore described greenhouse film snow-removing device has efficiency of cleaning snow height, technological merit of the snow removing without dead angle.Sudden and violent
Snowy day gas can clean up the accumulated snow to sink on greenhouse film in time, avoid falling that snow is excessive sinks on greenhouse film, right
Greenhouse film forms destructive pressure.In addition, above-mentioned greenhouse film snow-removing device not only has snow removing effect, can also remove attached
The dust on greenhouse film, greenhouse film is caused to remain best translucent effect, can more favorably promote plant
Growth and development, further improve crops yield.
Compared with artificial snow removing, this patent has the advantage that：
1, greenhouse film will not be punctured during removing the snow.
2, single stroke can remove all accumulated snow to sink on current greenhouse film, and efficiency of cleaning snow is high.
3, it removes the snow in such a way that periodicity is round-trip, can timely and effectively remove the accumulated snow rapidly to fall under severe snow weather.
4, the antifreeze cleaning solution with spray on greenhouse film surface in addition to snow removing is used cooperatively, and also cleans greenhouse film
Technique effect.
5, vulnerable part snow scraping plate is easily changed, and greenhouse film snow-removing device has the service life of overlength.
6, snow scraping plate drop-down driving device and snow scraping plate reset drives device respectively pass through elastic sliding slot and greenhouse wall body
Be fixedly connected, can active balance snow scraping plate when moving back and forth both sides rope because folding and unfolding length is different, caused by rope bounce,
The even technological deficiency of clamping stagnation wire spool.
7, the setting of controller can adjust the reciprocating frequence of snow scraping plate in time in conjunction with current snowfall, help to reach and remove
Avenge effect technique effect compatible with snowfall.
Description of the drawings
Fig. 1 is the structural schematic diagram of medium temperature chamber's film snow-removing device of the present invention；
Fig. 2 is amplification assumption diagram at A in Fig. 1；
Fig. 3 is amplification assumption diagram at C in Fig. 1；
Fig. 4 is amplification assumption diagram at B in Fig. 1；
Fig. 5 is the structural schematic diagram of snow scraping plate in Fig. 1；
Fig. 6 is that snow scraping plate pulls down connection type between driving device or snow scraping plate reset drives device and wall in Fig. 1
Improved structure schematic diagram.
Specific embodiment
The embodiment of the present invention is described below in detail, since following embodiments are exemplary, it is intended to for explaining this hair
It is bright, and then be not considered as limiting the invention.
Shown in Fig. 1, the present embodiment improve in greenhouse, heat preservation benzene plate BW, greenhouse keel are pasted in foundation wall Q
500 are fastenedly connected with foundation wall Q, and greenhouse film is pasted on greenhouse keel 500, at the pinnacle of greenhouse keel 500, towards
The coverage direction of keel both sides greenhouse film, is both provided with heat-preservation cotton by M.On above-mentioned greenhouse, the present invention provides a kind of
Greenhouse film snow-removing device, including：Guide rail 100, snow scraping plate 200, snow scraping plate drop-down driving device 300 and snow scraping plate reset drives
Device 400；The position that the keel 500 in the greenhouse are in contact with film, is adapted with the shape of the guide rail 100；It is described to lead
The setting quantity of rail 100 is multiple；As shown in Figures 2 and 3, the both ends of the guide rail 100 are respectively arranged under the snow scraping plate
Draw driving device 200 and snow scraping plate reset drives device 300；As shown in figure 4, the snow scraping plate pulls down driving device 200 and scrapes
Snow slab reset drives device 300 is fixedly connected by rope 230 with the snow scraping plate 200；The snow scraping plate 200 has along described
The freedom of motion that guide rail 100 slides.
Further, as shown in figure 5, in one of present invention optimal technical scheme, the knot of the snow scraping plate 200
Structure includes：It is provided with leading truck 201, unidirectional swing arm 202 and the hairbrush 203 of directive wheel；The unidirectional swing arm 202 and the guiding
Frame 201 is hinged, only has and is parallel to the freedom of motion that snow removing direction of feed is unidirectionally swung；The hairbrush 203 with it is described unidirectional
The free end of swing arm 202 is fastenedly connected.
Further, as shown in figure 5, in one of present invention optimal technical scheme, the snow scraping plate 200 passes through
The screw 204 that is arranged on the leading truck 201 is fastened, stops the unidirectional swing arm 202 to opposite with snow removing direction of feed
The freedom of motion that direction is swung.
Further, as shown in Figure 1, in one of present invention optimal technical scheme, the guide rail 100 is by upper and lower
The metal tube of spaced set forms.Specifically, leading truck 201 is fixed on the metal tube being located above, have along the metal
The degree of freedom of length of tube direction sliding；Underlying metal tube is used to form limit to unidirectional swing arm 202 and be oriented to, it is ensured that hair
The length direction of brush 203 is perpendicular with snow removing direction of feed always, and then keeps best snow removing effect.
Further, as shown in Figure 1 to Figure 3, in one of present invention optimal technical scheme, under the snow scraping plate
Driving device 200 and snow scraping plate reset drives device 300 is drawn respectively to be made of driving motor and rope drum.
Further, in one of present invention optimal technical scheme, vibrating motor is provided on the snow scraping plate.
The setting of vibrating motor provides auxiliary for removing the snow block freezed for hairbrush, and the effect that more preferably removes the snow can be obtained after unlatching,
Contribute to further to promote the working efficiency that film removes the snow under fine day state.
Further, in one of present invention optimal technical scheme, the snow scraping plate pulls down driving device and scrapes
Snow slab reset drives device is respectively provided with overload protection arrangement.When film, which freezes, has excessive snow block, snow scraping plate
Stopped into withdrawing the membership, the setting of overload protection arrangement can be avoided effectively when above-mentioned circumstances occurs, right because of current overload
Circuit damage caused by driving motor.
Further, as shown in fig. 6, in one of present invention optimal technical scheme, the snow scraping plate drop-down is driven
Dynamic device and snow scraping plate reset drives device are respectively fixedly connected by elastic sliding slot 410 with greenhouse wall body.Using above-mentioned knot
After structure, snow scraping plate pulls down driving device and snow scraping plate reset drives device all has the movement of the resilient movement above and below gravity direction
Degree of freedom.Snow scraping plate pulls down driving device and snow scraping plate reset drives device is respectively fixed by elastic sliding slot with greenhouse wall body
Connection, can active balance snow scraping plate when moving back and forth both sides rope because folding and unfolding length is different, caused by rope bounce, even
The technological deficiency of clamping stagnation wire spool can provide more strong structure for the movement Liu Chang during snow scraping plate folding and unfolding and protect
Barrier.
Further, further include controller in one of present invention optimal technical scheme, the controller difference
Driving device is pulled down with the snow scraping plate and snow scraping plate reset drives device is electrically connected.The setting of controller can be in conjunction with current drop
Snowfall adjusts the reciprocating frequence of snow scraping plate in time, helps to reach snow removing effect technique effect compatible with snowfall.
The various embodiments described above are only the preferred embodiment of the present invention, in the art, every to be based on skill of the present invention
Changes and improvements in art scheme should not exclude except protection scope of the present invention.
Claims (9)
1. a kind of greenhouse film snow-removing device, which is characterized in that including：Guide rail, snow scraping plate, snow scraping plate pull down driving device and scrape
Snow slab reset drives device；The position that the keel in the greenhouse are in contact with film is adapted with the shape of the guide rail；It is described
The setting quantity of guide rail is multiple；The both ends of the guide rail are respectively arranged with the snow scraping plate drop-down driving device and snow scraping plate is multiple
Position driving device；The snow scraping plate drop-down driving device and snow scraping plate reset drives device are fixed by rope and the snow scraping plate
Connection；The snow scraping plate has the freedom of motion slided along the guide rail.
2. greenhouse film snow-removing device according to claim 1, which is characterized in that the structure of the snow scraping plate includes：If
It is equipped with leading truck, unidirectional swing arm and the hairbrush of directive wheel；The unidirectional swing arm is hinged with the leading truck, only has to be parallel to and remove
The freedom of motion that snow direction of feed is unidirectionally swung；The hairbrush and the free end of the unidirectional swing arm are fastenedly connected.
3. greenhouse film snow-removing device according to claim 2, which is characterized in that the snow scraping plate is existed by fastening setting
Screw on the leading truck stops the freedom of motion that the unidirectional swing arm is swung to the direction opposite with snow removing direction of feed
Degree.
4. greenhouse film snow-removing device according to claim 1, which is characterized in that the guide rail is by upper and lower spaced set
Metal tube composition.
5. greenhouse film snow-removing device according to claim 1, which is characterized in that snow scraping plate drop-down driving device and
Snow scraping plate reset drives device is respectively made of driving motor and rope drum.
6. greenhouse film snow-removing device according to claim 1, which is characterized in that be provided with vibration electricity on the snow scraping plate
Machine.
7. greenhouse film snow-removing device according to claim 1, which is characterized in that snow scraping plate drop-down driving device and
Snow scraping plate reset drives device is respectively provided with overload protection arrangement.
8. greenhouse film snow-removing device according to claim 1, which is characterized in that snow scraping plate drop-down driving device and
Snow scraping plate reset drives device is respectively fixedly connected by elastic sliding slot with greenhouse wall body.
9. greenhouse film snow-removing device according to claim 1, which is characterized in that further include controller, the controller
Driving device is pulled down with the snow scraping plate and snow scraping plate reset drives device is electrically connected respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810299327.1A CN108301574A (en) | 2018-04-04 | 2018-04-04 | A kind of greenhouse film snow-removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810299327.1A CN108301574A (en) | 2018-04-04 | 2018-04-04 | A kind of greenhouse film snow-removing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108301574A true CN108301574A (en) | 2018-07-20 |
Family
ID=62848244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810299327.1A Withdrawn CN108301574A (en) | 2018-04-04 | 2018-04-04 | A kind of greenhouse film snow-removing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108301574A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117796316A (en) * | 2024-02-29 | 2024-04-02 | 湖北麦麦农业科技有限公司 | Lettuce automatic control growth environment's device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050044752A1 (en) * | 2003-09-03 | 2005-03-03 | Ken Thaler | Snow guard device |
| CN101766103A (en) * | 2008-12-30 | 2010-07-07 | 艾森贝克农业设备(北京)有限公司 | Sunlight greenhouse structure |
| CN201943276U (en) * | 2010-11-29 | 2011-08-24 | 华冈制造(中国)有限公司 | Snow removing system of greenhouse |
| CN203708929U (en) * | 2013-04-08 | 2014-07-16 | 程米红 | Strawberry greenhouse with snow removing device |
| CN205035993U (en) * | 2015-09-15 | 2016-02-17 | 河北安能绿色建筑科技有限公司 | Snow removing heat preservation device of daylighting flat top roofing |
| CN206385742U (en) * | 2017-01-05 | 2017-08-08 | 上海科度门窗有限公司 | Remove the snow structure on a kind of glass sunlight house roof |
| CN107173115A (en) * | 2017-06-09 | 2017-09-19 | 合肥市川丘生态农业科技发展有限公司 | Planting greenhouse |
| CN107859422A (en) * | 2017-10-09 | 2018-03-30 | 北京元恒大通科技有限公司 | Tent snow-removing device and there is its tent |
| CN207812865U (en) * | 2018-04-04 | 2018-09-04 | 艾森贝克农业设备(北京)有限公司 | A kind of greenhouse film snow-removing device |
-
2018
- 2018-04-04 CN CN201810299327.1A patent/CN108301574A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050044752A1 (en) * | 2003-09-03 | 2005-03-03 | Ken Thaler | Snow guard device |
| CN101766103A (en) * | 2008-12-30 | 2010-07-07 | 艾森贝克农业设备(北京)有限公司 | Sunlight greenhouse structure |
| CN201943276U (en) * | 2010-11-29 | 2011-08-24 | 华冈制造(中国)有限公司 | Snow removing system of greenhouse |
| CN203708929U (en) * | 2013-04-08 | 2014-07-16 | 程米红 | Strawberry greenhouse with snow removing device |
| CN205035993U (en) * | 2015-09-15 | 2016-02-17 | 河北安能绿色建筑科技有限公司 | Snow removing heat preservation device of daylighting flat top roofing |
| CN206385742U (en) * | 2017-01-05 | 2017-08-08 | 上海科度门窗有限公司 | Remove the snow structure on a kind of glass sunlight house roof |
| CN107173115A (en) * | 2017-06-09 | 2017-09-19 | 合肥市川丘生态农业科技发展有限公司 | Planting greenhouse |
| CN107859422A (en) * | 2017-10-09 | 2018-03-30 | 北京元恒大通科技有限公司 | Tent snow-removing device and there is its tent |
| CN207812865U (en) * | 2018-04-04 | 2018-09-04 | 艾森贝克农业设备(北京)有限公司 | A kind of greenhouse film snow-removing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117796316A (en) * | 2024-02-29 | 2024-04-02 | 湖北麦麦农业科技有限公司 | Lettuce automatic control growth environment's device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180720 |