CN220758900U - Mixing arrangement is used in production of calcium zinc compound stabilizer - Google Patents
Mixing arrangement is used in production of calcium zinc compound stabilizer Download PDFInfo
- Publication number
- CN220758900U CN220758900U CN202322423766.8U CN202322423766U CN220758900U CN 220758900 U CN220758900 U CN 220758900U CN 202322423766 U CN202322423766 U CN 202322423766U CN 220758900 U CN220758900 U CN 220758900U
- Authority
- CN
- China
- Prior art keywords
- mixing
- calcium
- tank
- stirring
- zinc composite
- 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.)
- Active
Links
- 238000002156 mixing Methods 0.000 title claims abstract description 107
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000003381 stabilizer Substances 0.000 title description 2
- 238000003756 stirring Methods 0.000 claims abstract description 63
- 239000006084 composite stabilizer Substances 0.000 claims abstract description 40
- 238000007790 scraping Methods 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims description 29
- 238000007599 discharging Methods 0.000 claims description 21
- 238000013329 compounding Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 28
- 239000002994 raw material Substances 0.000 description 39
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- JNPQFTCBVDSMDO-UHFFFAOYSA-L zinc;2,3-dihydroxypropanoate Chemical compound [Zn+2].OCC(O)C([O-])=O.OCC(O)C([O-])=O JNPQFTCBVDSMDO-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The utility model relates to the technical field of calcium-zinc composite stabilizer production equipment, and discloses a mixing device for calcium-zinc composite stabilizer production. According to the utility model, the two groups of lifting pushing paddles in the material mixing and stirring assembly are utilized to stir the material at the bottom, the two groups of material mixing paddles are utilized to stir the material, and the two groups of scraping plates are utilized to scrape and stir the material, so that the calcium-zinc composite stabilizer material can be fully and comprehensively subjected to multiple stirring and mixing operation, and the two groups of scraping plates are utilized to scrape and clean the inner wall of the material mixing tank, so that the residual materials adhered to the material mixing tank can be scraped.
Description
Technical Field
The utility model relates to the technical field of production equipment of calcium-zinc composite stabilizers, in particular to a mixing device for producing calcium-zinc composite stabilizers.
Background
The calcium-zinc composite stabilizer is a nontoxic heat stabilizer, has good lubricity, can slow down reaction, maintain chemical balance, reduce surface tension, and prevent light, thermal decomposition or oxidative decomposition, and mainly comprises the following components: calcium zinc epoxy fatty acid, zinc glycerate, calcium zinc dimer acid, amino acid zinc and the like, and in the production process, calcium salt, zinc salt, lubricant, antioxidant and the like are premixed and stirred by a mixing device, for example, the prior patent technology shows that: through searching, the Chinese patent net discloses a mixing device (publication No. CN 214438084U) for producing the calcium-zinc composite stabilizer, and the mixing device is used by mutually matching a mixing shell, a feed hopper, a fixed plate, a motor, a fixed clamping ring, a driving shaft, a first stirring blade, a bearing main body, a driving tooth, a driven shaft, a second stirring blade, a liquid outlet pipe and a valve body, so that the aim of mixing the mixing device for producing the calcium-zinc composite stabilizer is fulfilled.
However, there are some drawbacks to the mixing devices adopted in the above-mentioned publications and the existing market: the motor is adopted to drive the two groups of stirring She Duichen to rotate, the stirring and mixing modes are adopted for stirring and mixing the raw materials of the calcium-zinc composite stabilizer, the stirring and mixing performance is single, the raw materials of the calcium-zinc composite stabilizer cannot be subjected to omnibearing stirring and mixing operation, and the residual materials adhered to the tank wall after stirring and mixing are subjected to cleaning operation, so that the residual materials are easy to remain and adhere to the tank wall. For this reason, a mixing device for producing a calcium-zinc composite stabilizer is provided by a person skilled in the art to solve the problems set forth in the background art.
Disclosure of Invention
The utility model mainly aims to provide a mixing device for producing a calcium-zinc composite stabilizer, which can effectively solve the problem that the stirring and mixing efficiency of the existing mixing device for producing the calcium-zinc composite stabilizer in the background technology is lower.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the mixing device for producing the calcium-zinc composite stabilizer comprises a mixing tank, wherein a mixing stirring assembly is arranged in the tank body of the mixing tank, and a discharging assembly is connected at the position of the bottom end of the tank body of the mixing tank in a conducting manner;
the utility model provides a mixing stirring subassembly, including installing the transmission shaft in mixing tank cavity top middle part department, the axostylus axostyle top of transmission shaft is provided with the driving motor of installing on the mixing tank, and the axostylus axostyle bottom of transmission shaft is provided with first stirring support arm, the armed lever both ends of first stirring support arm all are provided with the material pushing ram of lifting, and every group of the oar board one side of lifting pushing ram all set up first scraper blade, two sets of second stirring support arms are installed to the armed lever middle part of first stirring support arm to link up in the symmetry form, two sets of the armed lever one end of second stirring support arm is the form of staggering and all is provided with the second scraper blade, and the armed lever other end of two sets of second stirring support arms is the form of staggering and all is provided with the rotation axis, the axostylus axostyle end of rotation axis is arranged and is provided with multiunit material mixing ram.
As still further aspects of the utility model: the tank body top of compounding jar switches on and is connected with the loading hopper, and the loading hopper is hopper-shaped structure.
As still further aspects of the utility model: the two sets of lifting pushing paddles are arranged in a forward and reverse symmetrical mode, and the two sets of lifting pushing paddles are of ship-shaped structures.
As still further aspects of the utility model: the top of the cavity of the mixing tank is provided with a transmission inner fluted disc at the edge position, and the top end of the shaft rod of the rotating shaft is provided with a transmission gear meshed with the transmission inner fluted disc.
As still further aspects of the utility model: the first scraping plate is attached to the tank bottom of the mixing tank, and the second scraping plate is attached to the tank wall of the mixing tank.
As still further aspects of the utility model: the utility model discloses a discharge assembly, including installing the discharge tube in the middle part department of mixing tank bottom, electromagnetic start-stop valve is installed at the pipeline top of discharge tube, and installs the discharge valve in the pipeline bottom of discharge tube, the bottom mouth of pipe of discharge tube is twisted and is fixed with the flange base, and the support middle part of flange base is star triangle symmetry form and is provided with three groups of support jib that extend to the discharge tube inside, first filter screen, second filter screen are installed in proper order from last to lower to the arm rod end of support jib.
As still further aspects of the utility model: the first filter screen and the second filter screen are of hemispherical structures.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, after the calcium-zinc composite stabilizer raw materials are added into the mixing tank, the raw materials are stirred at the bottom by utilizing the two groups of lifting pushing paddles in the mixing stirring assembly, the two groups of mixing pushing paddles automatically stir the raw materials, and the two groups of scraping paddles scrape and stir the raw materials, so that the calcium-zinc composite stabilizer raw materials can be fully and comprehensively stirred and mixed, the comprehensiveness and sufficiency of the mixing of the calcium-zinc composite stabilizer raw materials are ensured, and after the raw materials are stirred and mixed, the inner wall of the mixing tank is cleaned by scraping by utilizing the two groups of scraping paddles, so that the residual materials adhered to the raw materials can be scraped, and the residual materials are prevented from adhering to the tank wall and affecting the mixing performance of the mixing tank.
2. According to the utility model, after the mixing and stirring of the raw materials of the calcium-zinc composite stabilizer are finished, the particulate matters in the mixed raw materials can be filtered and isolated by utilizing the prefiltering of the two groups of filter screens in the unloading assembly, so that the unloading cleanliness of the raw materials is ensured.
Drawings
FIG. 1 is a schematic structural diagram of a mixing device for producing a calcium-zinc composite stabilizer;
FIG. 2 is a schematic structural diagram of a mixing and stirring assembly in a mixing device for producing a calcium-zinc composite stabilizer;
FIG. 3 is a schematic transmission diagram of a mixing paddle in a mixing device for producing the calcium-zinc composite stabilizer;
fig. 4 is a schematic structural diagram of a discharging assembly in a mixing device for producing a calcium-zinc composite stabilizer.
In the figure: 1. a mixing tank; 2. a hopper; 3. a drive motor; 4. a discharge tube; 5. a discharge valve; 6. a transmission shaft; 7. a first stirring arm; 8. lifting and pushing paddles; 9. a first scraper; 10. a second stirring arm; 11. a transmission gear; 12. a rotation shaft; 13. mixing paddles; 14. a second scraper; 15. a transmission inner fluted disc; 16. an electromagnetic opening and closing valve; 17. a flange base; 18. supporting the boom; 19. a second filter screen; 20. a first filter screen.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
Referring to fig. 1-4, a mixing device for producing a calcium-zinc composite stabilizer comprises a mixing tank 1, wherein a hopper 2 is connected above a tank body of the mixing tank 1 in a conducting manner, the hopper 2 is of a funnel-shaped structure, when the mixing device is utilized to produce and mix raw materials of the calcium-zinc composite stabilizer, the raw materials of the calcium-zinc composite stabilizer are added into the mixing tank 1 through the hopper 2 to be stirred and mixed, and the hopper 2 of the funnel-shaped structure can prevent scattering and leakage during raw material feeding.
The inside compounding stirring subassembly that installs of jar body of blending jar 1, compounding stirring subassembly is including installing the transmission shaft 6 in blending jar 1 cavity top middle part position department, the axostylus axostyle top of transmission shaft 6 is provided with the drive motor 3 of installing on blending jar 1, and the axostylus axostyle bottom of transmission shaft 6 is provided with first stirring support arm 7, the armed lever both ends of first stirring support arm 7 all are provided with material lifting push paddle 8, two sets of material lifting push paddle 8 are the forward, reverse symmetry arranges, and two sets of material lifting push paddle 8 are boat-shaped structure, in the stirring of mixing to calcium zinc composite stabilizer raw materials, material lifting push paddle 8 is at the rotation in-process, carry out the stirring of starting to the raw materials of compounding jar 1 bottom, with the stirring drive about the bottom raw materials circulation, in order to improve the stirring and mix the sufficiency from top to bottom.
Each group of paddle boards of the material lifting pushing paddles 8 are provided with a first scraping plate 9 on one side, the middle part of an arm rod of the first stirring support arm 7 is symmetrically communicated with two groups of second stirring support arms 10, one ends of the arm rods of the two groups of second stirring support arms 10 are staggered, the second scraping plates 14 are respectively arranged on one ends of the arm rods of the two groups of second stirring support arms 10, the first scraping plates 9 are attached to the tank bottom of the material mixing tank 1, the second scraping plates 14 are attached to the tank wall of the material mixing tank 1, in the process of stirring and mixing the calcium-zinc composite stabilizer raw materials, the first scraping plates 9 and the second scraping plates 14 can play a role in auxiliary stirring on one hand, on the other hand, after the raw materials are stirred and mixed, the inner wall of the material mixing tank 1 is scraped by the two groups of scraping plates, and the residual materials adhered to the tank wall of the material mixing tank are prevented from adhering to each other, and the stirring and mixing performance of the material mixing tank 1 is prevented from being influenced.
The other ends of arm rods of the two groups of second stirring support arms 10 are provided with rotating shafts 12 in a staggered mode, shaft rod ends of the rotating shafts 12 are provided with a plurality of groups of mixing paddles 13 in an arrangement mode, the top of a cavity of the mixing tank 1 is provided with a transmission inner fluted disc 15 at the edge position, the top end of the shaft rod of the rotating shaft 12 is provided with a transmission gear 11 meshed with the transmission inner fluted disc 15, in the stirring and mixing process of calcium-zinc composite stabilizer raw materials, the rotating shafts 12 and the mixing paddles 13 are combined in the rotating process, and the transmission gear 11 at the top end of the shaft rod is meshed with the transmission inner fluted disc 15 to drive the rotating shaft 12 and the mixing paddles 13 to rotate while keeping autorotation, so that the raw materials inside the mixing tank 1 are sufficiently stirred and mixed.
The bottom end of the tank body of the mixing tank 1 is positioned at the middle position and is connected with a discharging component in a conducting manner, the discharging component comprises a discharging pipe 4 arranged at the middle position of the tank bottom of the mixing tank 1, an electromagnetic start-stop valve 16 is arranged at the top of a pipeline of the discharging pipe 4, a discharging valve 5 is arranged at the bottom of the pipeline of the discharging pipe 4, a flange base 17 is screwed and fixed at a bottom pipe orifice of the discharging pipe 4, three groups of support hanging rods 18 extending into the discharging pipe 4 are arranged in a star-delta symmetrical mode at the middle of a support seat of the flange base 17, a first filter screen 20 and a second filter screen 19 are sequentially arranged at the arm rod ends of the support hanging rods 18 from top to bottom, the first filter screen 20 and the second filter screen 19 are of a hemispherical structure, after the mixing of calcium-zinc composite stabilizer raw materials is completed, the electromagnetic start-stop valve 16 is controlled to be opened, then the mixed raw materials flow into the discharging pipe 4 after the filtering of particulate matters in the raw materials through the first filter screen 20 and the second filter screen 19, after the raw materials are discharged through the discharging valve 5, the flange base 17 can be detached, the first filter screen 20 and the second filter screen 19 can be taken out after the raw materials are discharged, and the filtered particles are cleaned.
The working principle of the utility model is as follows: when the mixing device is used for producing and mixing the calcium-zinc composite stabilizer raw materials, the calcium-zinc composite stabilizer raw materials are added into the mixing tank 1 through the charging hopper 2 for stirring and mixing, after the charging is finished, the transmission motor 3 is controlled to drive the transmission shaft 6 to rotate, then the first stirring support arm 7 and the second stirring support arm 10 are driven to rotate, corresponding parts are driven to rotate, the first stirring support arm 7 is driven to rotate in the process of rotating, the lifting pushing paddle 8 is driven to rotate, the raw materials at the bottom of the mixing tank 1 are stirred at the bottom, the raw materials at the bottom are circularly stirred and driven upwards, so as to improve the sufficiency of up-down stirring and mixing of the raw materials, the second stirring support arm 10 is driven to rotate in the process of rotating the rotation shaft 12 and the mixing paddle 13, and the meshing transmission of the transmission gear 11 at the top end of the shaft rod and the transmission internal fluted disc 15 is utilized, the rotary shaft 12 and the mixing paddle 13 are enabled to rotate while rotating, the raw materials in the mixing tank 1 are fully stirred and mixed, the first scraping plate 9 and the second scraping plate 14 are synchronously pushed to rotate, on one hand, the auxiliary stirring effect can be achieved, on the other hand, after the raw materials are stirred and mixed, the inner wall of the mixing tank 1 is scraped by the two groups of scraping plates, the residual materials adhered to the wall of the tank are prevented from being scraped, the residual materials are prevented from adhering to the wall of the tank, after the raw materials of the calcium-zinc composite stabilizer are stirred and mixed, the electromagnetic start-stop valve 16 is controlled to be opened, the mixed raw materials are enabled to flow into the discharge pipe 4, the granular materials in the raw materials are filtered through the first filter screen 20 and the second filter screen 19, and then discharged through the discharge valve 5, and the stirring, mixing and discharging of the raw materials of the calcium-zinc composite stabilizer are completed.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The mixing device for producing the calcium-zinc composite stabilizer comprises a mixing tank (1), and is characterized in that a mixing stirring assembly is arranged in the tank body of the mixing tank (1), and a discharging assembly is connected at the position of the bottom end of the tank body of the mixing tank (1) in the middle in a conducting manner;
the utility model provides a mixing stirring subassembly is including installing transmission shaft (6) in compounding jar (1) cavity top middle part department, the axostylus axostyle top of transmission shaft (6) is provided with drive motor (3) of installing on compounding jar (1), and the axostylus axostyle bottom of transmission shaft (6) is provided with first stirring support arm (7), the armed lever both ends of first stirring support arm (7) all are provided with lift push (8), and every group lift push (8) paddle board one side all sets up first scraper blade (9), two sets of second stirring support arms (10) are link up in the armed lever middle part of first stirring support arm (7) in the symmetry form, and two sets of armed lever one end of second stirring support arm (10) all is provided with second scraper blade (14) in the form of staggering, and the armed lever other end of two sets of second stirring support arms (10) all is provided with rotation axis (12) in the form of staggering, the axostylus axostyle end of rotation axis (12) is arranged and is provided with multiunit stirring oar (13).
2. The mixing device for producing the calcium-zinc composite stabilizer according to claim 1, wherein a hopper (2) is connected above the tank body of the mixing tank (1), and the hopper (2) is of a funnel-shaped structure.
3. The mixing device for producing the calcium-zinc composite stabilizer according to claim 1, wherein the two sets of lifting propellers (8) are arranged in a forward and reverse symmetrical manner, and the two sets of lifting propellers (8) are of a ship-shaped structure.
4. The mixing device for producing the calcium-zinc composite stabilizer according to claim 1, wherein a transmission inner fluted disc (15) is arranged at the edge position of the top of the cavity of the mixing tank (1), and a transmission gear (11) meshed with the transmission inner fluted disc (15) is arranged at the top end of the shaft rod of the rotating shaft (12).
5. The mixing device for producing the calcium-zinc composite stabilizer according to claim 1, wherein the first scraping plate (9) is attached to the tank bottom of the mixing tank (1), and the second scraping plate (14) is attached to the tank wall of the mixing tank (1).
6. The mixing device for calcium zinc composite stabilizer production according to claim 1, wherein the discharging assembly comprises a discharging pipe (4) arranged at the middle position of the tank bottom of the mixing tank (1), an electromagnetic start-stop valve (16) is arranged at the top of a pipeline of the discharging pipe (4), a discharging valve (5) is arranged at the bottom of the pipeline of the discharging pipe (4), a flange base (17) is screwed and fixed at a bottom pipe orifice of the discharging pipe (4), three groups of support hanging rods (18) extending into the discharging pipe (4) are arranged at the middle of a support of the flange base (17) in a star-delta symmetrical mode, and a first filter screen (20) and a second filter screen (19) are sequentially arranged at arm rod ends of the support hanging rods (18) from top to bottom.
7. The mixing device for producing the calcium zinc composite stabilizer according to claim 6, wherein the first filter screen (20) and the second filter screen (19) are of hemispherical structures.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202322423766.8U CN220758900U (en) | 2023-09-07 | 2023-09-07 | Mixing arrangement is used in production of calcium zinc compound stabilizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202322423766.8U CN220758900U (en) | 2023-09-07 | 2023-09-07 | Mixing arrangement is used in production of calcium zinc compound stabilizer |
Publications (1)
Publication Number | Publication Date |
---|---|
CN220758900U true CN220758900U (en) | 2024-04-12 |
Family
ID=90610475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202322423766.8U Active CN220758900U (en) | 2023-09-07 | 2023-09-07 | Mixing arrangement is used in production of calcium zinc compound stabilizer |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN220758900U (en) |
-
2023
- 2023-09-07 CN CN202322423766.8U patent/CN220758900U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN217511856U (en) | Synthetic high-efficient reation kettle of concrete aliphatic water-reducing agent | |
CN209138474U (en) | A kind of efficient corrosion resisting material uniform mixing equipment | |
CN208553917U (en) | A kind of high-molecular water paint Efficient Agitator | |
CN220758900U (en) | Mixing arrangement is used in production of calcium zinc compound stabilizer | |
CN212894623U (en) | Peony seed oil deacidification extraction element | |
CN218795391U (en) | Solvent preparation mixing arrangement is used in rupture membrane raw materials production | |
CN217988599U (en) | Reation kettle is used in production of fatty acid type diesel oil antiwear agent | |
CN219356064U (en) | Mixing stirring equipment convenient to ejection of compact | |
CN216825766U (en) | Emulsification tank that stirring effect is good | |
CN216299670U (en) | High-efficient mixer | |
CN214992850U (en) | Two-way agitated vessel of bituminous concrete of misce bene | |
CN213611175U (en) | Quick stirring pot for cosmetics | |
CN214764870U (en) | Meal replacement milkshake preparation mixing arrangement | |
CN111888983A (en) | Mixed liquid stirring device for chemical production | |
CN217313389U (en) | A reation kettle for resin production | |
CN221850649U (en) | Sand mixing device | |
CN218222242U (en) | Pneumatic stirring device | |
CN219291145U (en) | Mixing tank for preparing concrete water reducer | |
CN219400150U (en) | Mixing tank for preparing water reducer | |
CN221832108U (en) | Material stirring device | |
CN220657492U (en) | Mixer is used in dyestuff intermediate production | |
CN214182795U (en) | Novel chemical industry is with mixing liquid stirring device | |
CN218924349U (en) | Coated tannic acid production equipment | |
CN218944824U (en) | Refractory material blendor | |
CN221580476U (en) | Stirring device for processing natural diatomite putty |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |