CN211322646U - Aquaculture dirt absorbing device - Google Patents
Aquaculture dirt absorbing device Download PDFInfo
- Publication number
- CN211322646U CN211322646U CN201921466539.0U CN201921466539U CN211322646U CN 211322646 U CN211322646 U CN 211322646U CN 201921466539 U CN201921466539 U CN 201921466539U CN 211322646 U CN211322646 U CN 211322646U
- Authority
- CN
- China
- Prior art keywords
- sewage suction
- soil pick
- shell
- sewage
- aquaculture
- 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.)
- Expired - Fee Related
Links
- 238000009360 aquaculture Methods 0.000 title claims abstract description 19
- 244000144974 aquaculture Species 0.000 title claims abstract description 19
- 239000010865 sewage Substances 0.000 claims abstract description 77
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000001914 filtration Methods 0.000 claims abstract description 23
- 239000002689 soil Substances 0.000 claims abstract description 16
- 238000005192 partition Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 abstract description 7
- 230000001580 bacterial effect Effects 0.000 abstract description 2
- 125000003003 spiro group Chemical group 0.000 abstract description 2
- 244000309464 bull Species 0.000 abstract 1
- 241000251468 Actinopterygii Species 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- 241000143060 Americamysis bahia Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 241000238557 Decapoda Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Images
Landscapes
- Farming Of Fish And Shellfish (AREA)
Abstract
The utility model discloses an aquaculture soil pick-up device, including drive wheel and casing, the inboard of drive wheel is provided with soil pick-up mechanism, the inner chamber of casing is provided with filtering mechanism, soil pick-up mechanism with filtering mechanism respectively with the soil pick-up pipe about both ends spiro union, the inboard four corners of baffle is passed through the bull stick and is connected with the drive wheel rotation, the bottom central point of soil pick-up head puts the screw connection and has the tee bend, two the gyro wheel symmetry rotation is respectively connected in the front and back both sides of casing, the top opening part of casing articulates there is the apron that can upwards lift up, and the top of apron is provided with the handle. This aquaculture dirt absorbing device can carry out the soil pick-up to excrement and impurity in the pond, and sewage secondary filter can effectively improve quality of water, need not to clear up repeatedly, alleviates staff's burden, reduces the probability that bacterial growing in the water influences aquatic products and grows, convenient and fast, and labour saving and time saving improves whole work efficiency.
Description
Technical Field
The utility model relates to an aquaculture soil pick-up technical field specifically is an aquaculture soil pick-up device.
Background
Aquaculture is the production activity of breeding, cultivating and harvesting aquatic animals and plants under artificial control. Generally comprises the whole process of cultivating aquatic products from seedlings under artificial feeding management, and can also comprise the multiplication of aquatic resources in a broad sense.
The aquaculture has modes of rough culture, intensive culture, high-density intensive culture and the like, wherein the rough culture is to put seedlings in medium and small natural waters and to culture aquatic products such as fish culture in lakes and reservoirs, shellfish culture in shallow seas and the like by completely relying on natural baits. Intensive culture is to culture aquatic products such as pond fish culture, net cage fish culture, fence culture and the like in a small water body by using bait casting and fertilizing methods. High density intensive culture adopts methods such as flowing water, accuse temperature, oxygenation and throwing and feeding high-quality bait, carry out high density breed in little water, thereby obtain high yield, for example flowing water high density is bred fish, shrimp, etc., but at the in-process of raising, thereby it keeps quality of water to need raise personnel to clear up debris and excrement and urine that the bottom subsided in the pond, thereby prevent that the bacterium in the water from breeding the influence aquatic products growth, current aquaculture soil pick-up device soil pick-up head can only the low side and clear up, the scope is less, it is not swift enough, and single filtration still can partly dirty omission return water in influence clearance quality, it still needs raise personnel to clear up repeatedly when necessary, waste time and energy, efficiency is low excessively.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an aquaculture soil pick-up device to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: an aquaculture sewage suction device comprises four driving wheels and a shell, wherein a filtering mechanism is arranged in an inner cavity of the shell, one end of a sewage suction pipe is arranged on the left side of the top end of the shell, a sewage suction mechanism is arranged at the other end of the sewage suction pipe, and the four driving wheels are respectively arranged at the left end and the right end of the front side wall and the rear side wall of the sewage suction mechanism;
the sewage suction mechanism comprises a rotating rod, a baffle plate, a sewage suction head, a tee joint, a hollow hand push rod and a round rod;
the sewage suction device comprises a baffle, a driving wheel, a rotating rod, a tee joint, a hollow hand push rod, a round rod, a sewage suction pipe and a casing, wherein four corners of the inner side of the baffle are rotatably connected with the driving wheel through the rotating rod, the inner side of the baffle is provided with the sewage suction head, the rotating rod extends out of the driving wheel, the inner side of the driving wheel is fixed on the outer side of the sewage suction head, the center position of the bottom end of the sewage suction head is in screwed connection with the tee joint, the left side and the right side of the tee joint are respectively in screwed connection with the inner wall of the left side and the right side of the bottom end of the sewage suction head, the center position of the top end of the sewage;
the filtering mechanism comprises a roller, a sewage suction pump, a partition plate, a sliding chute, a sliding block, a filtering box, a filtering net, a handrail, a cover plate and a handle;
the sewage suction pump is located in an inner cavity of the shell, a water inlet of the sewage suction pump corresponds to an opening of the shell and is in screw connection with the opening of the shell, the partition is located on the right side of the sewage suction pump and is in interference fit with the inner wall of the shell along the front-back direction, a water outlet of the sewage suction pump is in interference fit with the opening of the partition, sliding grooves are symmetrically formed in the front side and the back side of the inner cavity of the shell, sliding blocks are embedded in the inner cavities of the sliding grooves, filter boxes are arranged on the inner sides of the sliding blocks, a filter screen is screwed on the right side of the shell, a handle is arranged on the right side of the top end of the shell, an opening in the top end of the shell is hinged to an cover plate capable of.
Preferably, a sealing ring is arranged around the bottom end of the cover plate.
Preferably, the shape of the rotating rod is T-shaped.
Preferably, the tee joint is in an H shape.
Preferably, the filter box is provided with filter screens on the front side and the rear side, and the density of the filter screens is smaller than that of the filter screens of the filter box.
Compared with the prior art, the beneficial effects of the utility model are that: this aquaculture dirt absorbing device, when the in-service use, can carry the inner chamber to the casing with the excrement and urine debris in the pond under dirt absorbing device's cooperation, can filter the back to the sewage of gushing into in the casing under the cooperation through filter mechanism and carry back to breed in the pond, accomplish the device's use, can go on before excrement and impurity in the pond through the dirt suction head, afterwards, the diversified dirt absorption of bottom, enlarge the scope of dirt absorption, sewage secondary filter can effectively improve quality of water, need not to clear up repeatedly, alleviate staff's burden, reduce the probability that bacterial growing in the water influences aquatic products growth, high convenience and fast, time saving and labor saving, improve whole work efficiency.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a bottom view of the sewage suction mechanism of the present invention;
FIG. 3 is a front cross-sectional view of the filtering mechanism of the present invention;
fig. 4 is a right side sectional view of the filtering mechanism of the present invention.
In the figure: 1. the sewage suction device comprises a driving wheel, 2, a shell, 3, a sewage suction mechanism, 301, a rotating rod, 302, a baffle, 303, a sewage suction head, 304, a tee joint, 305, a hollow hand push rod, 306, a round rod, 4, a sewage suction pipe, 5, a filtering mechanism, 501, a roller, 502, a sewage suction pump, 503, a partition plate, 504, a sliding groove, 505, a sliding block, 506, a filtering box, 507, a filtering net, 508, a handle, 509, a cover plate, 510, a handle, 511 and a sealing ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution of a sewage suction device for aquaculture: an aquaculture sewage suction device comprises four driving wheels 1 and a shell 2, wherein a filtering mechanism 5 is arranged in an inner cavity of the shell 2, one end of a sewage suction pipe 4 is arranged on the left side of the top end of the shell 2, a sewage suction mechanism 3 is arranged at the other end of the sewage suction pipe 4, and the four driving wheels 1 are respectively arranged at the left end and the right end of the front side wall and the rear side wall of the sewage suction mechanism 3;
the sewage suction mechanism 3 comprises a rotating rod 301, a baffle 302, a sewage suction head 303, a tee joint 304, a hollow hand push rod 305 and a round rod 306;
the four corners of the inner side of the baffle 302 are rotationally connected with the driving wheel 1 through rotating rods 301, the inner side of the baffle 302 is provided with a sewage suction head 303, the rotating rod 301 extends out of the inner side of the driving wheel 1 and is fixed on the outer side of the sewage suction head 303, the sewage suction head 303 is used for absorbing impurities in the water bottom, a tee joint 304 is connected with the center position of the bottom end of the sewage suction head 303 through a screw, the left side and the right side of the tee joint 304 are respectively connected with the inner wall screws at the left side and the right side of the bottom end of the dirt absorbing head 303, the center position of the top end of the dirt absorbing head 303 is screwed with a hollow hand push rod 305, the hollow hand push rod 305 is convenient for workers to control the direction of the dirt absorbing head 303, and the top end of the hollow hand-push rod 305 is screwed with one end of a round rod 306, the surface of the round rod 306 is a frosted surface, the friction force can be increased, the use by workers is convenient, one end of the sewage suction pipe 4 is screwed at the other end of the round rod 306, and the other end of the sewage suction pipe 4 is screwed with the opening on the left side of the top end of the shell 2;
the filtering mechanism 5 comprises a roller 501, a sewage suction pump 502, a partition 503, a chute 504, a slide block 505, a filter box 506, a filter screen 507, a handle 508, a cover plate 509 and a handle 510;
the two rollers 501 are respectively and symmetrically connected to the front side and the rear side of the housing 2 in a rotating manner, the sewage suction pump 502 is located in the inner cavity of the housing 2, the water inlet of the sewage suction pump 502 corresponds to the opening of the housing 2 and is connected with the opening by screws, the partition 503 is located on the right side of the sewage suction pump 502, the partition 503 can divide the inner cavity of the housing 2 into a dry area and a wet area, so that the sewage sucked into the inner cavity of the housing 2 is prevented from interfering with the sewage suction pipe 4 which is in operation, and is in interference fit with the inner wall of the housing 2 along the front-rear direction, the water outlet of the sewage suction pump 502 is in interference fit with the opening of the partition 503, the water outlet of the sewage suction pump 502 and the right surface of the partition 503 are on the same horizontal line, so that a user can take out the filter cartridge 506, the front side and the rear side of the inner cavity of the, and the inner chamber of spout 504 is embedded to have slider 505, and the inboard of slider 505 is provided with filter cartridge 506, and the right side spiro union of casing 2 has filter screen 507, and the top right side of casing 2 is provided with holds up handle 508, and the device can be removed wantonly under the cooperation of hold up handle 508 and gyro wheel 501, and the open part in the top of casing 2 articulates there is the apron 509 that can lift up, and the top of apron 509 is provided with handle 510, and handle 510 conveniently opens apron 509.
The following electric devices have the following types and functions:
the sewage suction pump 502: the model is AP-200, is controlled by an external operating system and is used for pumping out the sewage in the culture pond.
Preferably, a sealing ring 511 is further disposed around the bottom end of the cover 509, and the sealing ring 511 can prevent the sucked sewage from overflowing the housing 2.
Preferably, the rotating rod 301 is shaped like a "T", and the "T" is capable of being fixedly connected with the dirt suction head 303 while the driving wheel 1 is rotatably connected.
Preferably, the tee joint 304 is in an "H" shape, and the "H" shape can make the front, rear and bottom ends of the sewage suction head 303 simultaneously feel the suction force of the sewage suction pump 502, so as to enhance the sewage suction effect.
As preferred scheme, further, both sides are the filter screen around the filter cartridge 506 removes, and the filter screen density of filter screen 507 is less than the density of filter cartridge 506 filter screen, both sides are not convenient for set up slider 505 for the filter screen around the filter cartridge, and filter cartridge 506 is preliminary screening, compare some and carry out the primary filtration to the miscellaneous dirt that is big a bit, and the filter screen 507 density of water outflow department is more meticulous, can carry out secondary filter with all the other little impurity, two-layer screening of big small filth also alleviates filterable burden, it is too urgent to prevent to clear up, a large amount of breed filths lead to filtering blockage phenomenon to take place.
All the electrical components in the present application are connected with the power supply adapted to the electrical components through the wires, and an appropriate controller should be selected according to actual conditions to meet the control requirements, and specific connection and control sequences should be obtained.
When the device needs to be started to absorb sewage in the culture pond, the handle 508 is pushed to enable the roller 501 to pull 2 to align the filter screen 507 with the pond, the round rod 306 is held to place the sewage absorbing mechanism 3 in the pond, the front side, the rear side and the bottom end of the sewage absorbing head 303 can be enabled to simultaneously absorb excrement and impurities of fishes and shrimps in the pond under the assistance of the tee joint 304, the traditional single cleaning mode is broken through, the cleaning speed is accelerated, the impurities carried along with the movement of the device can be instantly absorbed into the hollow hand push rod 305, the hollow hand push rod 305 is pulled, the sewage absorbing head 303 can be enabled to change angles under the assistance of the driving wheel 1, other positions in the pond can be cleaned, the sewage absorbing water pump 502 is started, the sewage in the pond is conveyed to the water outlet of the sewage absorbing water pump 502 along the hollow hand push rod 305, the round rod 306 and the sewage absorbing pipe 4 through the pressure of the sewage absorbing water pump 502 and then flows into the inner cavity of the filter box 506, dirt passing through the inner cavity of the shell 2 can be separated from a water source under the filtration of the filter box 506, the filtered sewage continuously flows to the right side and flows back into the pond through the filter screen 507, secondary filtration is carried out under the assistance of the filter screen 507, the dirt suction treatment in the culture pond is completed, after the use is finished, the handle 510 can be held to pull the cover plate 509 away upwards, the filter box 506 in the shell 2 is taken out for cleaning after dirt suction, the filter box 506 is inserted into the inner cavity of the culture pond back 2 along the direction of the sliding groove 504 under the cooperation of the sliding block 505, the use is finished, under the assistance of the secondary filtration of the multi-directional dirt suction head 303, the filter box 506 and the filter screen 507, the dirt suction efficiency and quality are greatly improved, the dirt suction requirement is met, the operation is convenient and fast, the missing impurities are effectively prevented from falling into the return water.
In the description of the present invention, it is to be understood that the terms "central position", "inner chamber", "outer wall", "top end", "bottom end", "one end", "right side", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation; also, unless expressly stated or limited otherwise, the terms "disposed," "secured," "plugged," "interference fit," "hinged," and the like are to be construed broadly and can include, for example, a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an aquaculture soil pick-up device, includes four drive wheels (1) and casing (2), its characterized in that: a filtering mechanism (5) is arranged in an inner cavity of the shell (2), one end of a sewage suction pipe (4) is arranged on the left side of the top end of the shell (2), a sewage suction mechanism (3) is arranged at the other end of the sewage suction pipe (4), and the four driving wheels (1) are respectively arranged at the left end and the right end of the front side wall and the rear side wall of the sewage suction mechanism (3);
the sewage suction mechanism (3) comprises a rotating rod (301), a baffle (302), a sewage suction head (303), a tee joint (304), a hollow hand push rod (305) and a round rod (306);
the inner four corners of the baffle (302) are rotatably connected with the driving wheel (1) through rotating rods (301), a dirt suction head (303) is arranged on the inner side of the baffle (302), the rotating rods (301) extend out of the inner side of the driving wheel (1) and are fixed on the outer side of the dirt suction head (303), a tee joint (304) is connected to the center of the bottom end of the dirt suction head (303) through screws, the left side and the right side of the tee joint (304) are respectively connected with inner wall screws on the left side and the right side of the bottom end of the dirt suction head (303), a hollow hand push rod (305) is screwed to the center of the top end of the dirt suction head (303), one end of a round rod is screwed to the top end of the hollow hand push rod (305), one end of a dirt suction pipe (4) is screwed to the other end of the round rod (306), and the other end of the dirt suction pipe (4;
the filtering mechanism (5) comprises a roller (501), a sewage suction pump (502), a partition plate (503), a sliding groove (504), a sliding block (505), a filtering box (506), a filtering net (507), a handle (508), a cover plate (509) and a handle (510);
the two rollers (501) are respectively and symmetrically connected to the front side and the rear side of the shell (2) in a rotating mode, the sewage suction pump (502) is located in the inner cavity of the shell (2), the water inlet of the sewage suction pump (502) corresponds to the opening of the shell (2) and is connected with the opening of the shell in a screw mode, the partition plate (503) is located on the right side of the sewage suction pump (502) and is in interference fit with the inner wall of the shell (2) along the front-rear direction, the water outlet of the sewage suction pump (502) is in interference fit with the opening of the partition plate (503), sliding grooves (504) are symmetrically formed in the front side and the rear side of the inner cavity of the shell (2), a sliding block (505) is embedded in the inner cavity of each sliding groove (504), a filter box (506) is arranged on the inner side of each sliding block (505), a filter screen (507) is screwed on the right side of the, and a handle (510) is arranged at the top end of the cover plate (509).
2. An aquaculture soil pick-up device according to claim 1 wherein: and a sealing ring (511) is arranged around the bottom end of the cover plate (509).
3. An aquaculture soil pick-up device according to claim 1 wherein: the rotating rod (301) is T-shaped.
4. An aquaculture soil pick-up device according to claim 1 wherein: the tee joint (304) is H-shaped.
5. An aquaculture soil pick-up device according to claim 1 wherein: the filter box (506) is provided with filter screens on the front side and the rear side, and the density of the filter screens (507) is smaller than that of the filter screens of the filter box (506).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201921466539.0U CN211322646U (en) | 2019-09-05 | 2019-09-05 | Aquaculture dirt absorbing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201921466539.0U CN211322646U (en) | 2019-09-05 | 2019-09-05 | Aquaculture dirt absorbing device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN211322646U true CN211322646U (en) | 2020-08-25 |
Family
ID=72131432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201921466539.0U Expired - Fee Related CN211322646U (en) | 2019-09-05 | 2019-09-05 | Aquaculture dirt absorbing device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN211322646U (en) |
-
2019
- 2019-09-05 CN CN201921466539.0U patent/CN211322646U/en not_active Expired - Fee Related
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110771551A (en) | Ecological full-intelligent circulating water shrimp culture system | |
CN208509880U (en) | A kind of multi-functional aquaculture tank | |
CN213719432U (en) | High-efficient ecological feeding equipment of circulation fresh water fishery | |
CN110800680B (en) | Green type aquaculture device convenient to green aquatic products fish intergrowth of planting | |
CN211322646U (en) | Aquaculture dirt absorbing device | |
CN202348704U (en) | Underwater submersible sewage absorbing machine | |
CN210538274U (en) | Engineering recirculating aquaculture is with dirty pond of collection | |
CN209330920U (en) | A kind of scale brachymystax lenok aquaculture pond | |
CN217065070U (en) | Aquaculture bottom cleaning and dirt removing device | |
CN110771557A (en) | Aquaculture oxygenation method | |
CN217089183U (en) | Automatic change breed circulating water treatment facilities | |
CN113180019B (en) | Freshwater shrimp's equipment of catching in winter | |
CN109588359A (en) | A kind of recirculated water ecological cultivation system | |
CN201947792U (en) | Automatic sewage drainage breeding pond | |
CN211746299U (en) | Water quality improvement circulating equipment for silver carp and bighead carp culture | |
CN211832404U (en) | Aquaculture is with device that spreads pesticides | |
CN210987753U (en) | Perch culture pond circulating water changing device | |
CN209806860U (en) | Water temperature control circulating pool with oxygenation device | |
CN113925013A (en) | Fish fry screening and cultivating pool for fishery and fish fry screening and cultivating method | |
CN210262978U (en) | Water surface cleaning equipment for aquaculture | |
CN213965534U (en) | Impurity filtering device for aquaculture | |
CN208113798U (en) | A kind of floating type fish culture in running water slot of energy-saving and pollution-reducing | |
CN209284052U (en) | A kind of clear bottom decontamination apparatus of aquaculture | |
CN208266836U (en) | A kind of floating material pollution cleaning plant of aquaculture | |
CN207692748U (en) | A kind of attemperator of fish water cyclic culture |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20201015 Address after: Liuwang community, Shenbei street, Shenbei New District, Shenyang City, Liaoning Province Patentee after: Shenyang sudingxin fishery Co.,Ltd. Address before: No.27, group 7, Sanyuan village, caojia Town, Qishan County, Baoji City, Shaanxi Province Patentee before: Zhao Jianglin |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200825 |