CN102380300A - Lampblack and soot liquefying machine - Google Patents
Lampblack and soot liquefying machine Download PDFInfo
- Publication number
- CN102380300A CN102380300A CN2011102020330A CN201110202033A CN102380300A CN 102380300 A CN102380300 A CN 102380300A CN 2011102020330 A CN2011102020330 A CN 2011102020330A CN 201110202033 A CN201110202033 A CN 201110202033A CN 102380300 A CN102380300 A CN 102380300A
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- CN
- China
- Prior art keywords
- row
- roll
- last
- wet cloth
- volume
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2035—Arrangement or mounting of filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2057—Removing cooking fumes using a cleaning liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7027—Aromatic hydrocarbons
Abstract
The invention discloses a lampblack and soot liquefying machine which comprises a shell, a driving motor, a gear transmission mechanism, an upper coil feeding belt device, a lower coil feeding belt device, a soaking basin and a dissolving reducing liquid, wherein the dissolving reducing liquid is an organic solvent or inorganic solvent. The upper coil feeding belt device comprises upper-row front rollers, upper-row rear rollers and an upper coil feeding belt; the lower coil feeding belt device comprises lower-row front rollers, lower-row rear rollers and a lower coil feeding belt; the upper coil feeding belt is wrapped with an upper gas absorption wet cloth; the lower coil feeding belt is wrapped with a lower gas absorption wet cloth; the near outer sides of the upper gas absorption wet cloth at the lower part of the upper coil feeding belt and the lower gas absorption wet cloth at the upper part of the lower coil feeding belt are in contact; the lower gas absorption wet cloth at the lower part of the lower coil feeding belt is soaked in the dissolving reducing liquid in the soaking basin; and a smoke inlet is formed at the front end of the shell. The polluted gas is absorbed and coiled onto the upper gas absorption wet cloth and the lower gas absorption wet cloth; and a liquid or paste solvent capable of dissolving oil, coal, toluene, dimethylbenzene or complicated harmful chemical mixtures and the like contained in waste gas is attached to the upper gas absorption wet cloth and the lower gas absorption wet cloth so that the processed gas is dissolved into a liquid.
Description
Technical field
The present invention relates to the waste gas treatment equipment field, specifically is a kind of oil smoke, coal smoke water machine.
Background technology
At present; The coal smoke of the oil smoke that produces in the kitchen in family or hotel, the waste gas of motor vehicle emission, factory's boiler emission, the contaminated foul smell of indoor and outdoor or the like; All directly be discharged in the atmosphere without processing, both contaminated air environment, also the health to human body threatens.
Summary of the invention
The objective of the invention is to provides a kind of change water machine that is dissolved as waste gas such as oil smoke, coal smoke liquid, purifying exhaust air to above-mentioned existing problems and deficiency.
Technical scheme of the present invention is achieved in that a kind of oil smoke coal smoke water machine; Comprise housing, be arranged on the drive motors in the housing, the gear drive that is connected with the drive motors output shaft, on roll up Work-feeding means, last volume Work-feeding means, install and be contained in the reducing solution that dissolves in the Soaking basin at the removable Soaking basin of last volume Work-feeding means bottom, dissolving reducing solution is organic solvent or inorganic solvent.Wherein, said go up the volume Work-feeding means comprise row's front roll, on arrange upward rolling up outside back roll and the row of being coated on front roll and the row's of the going up back roll and send band; Said last volume Work-feeding means comprise down row's front roll, down arrange back roll and be coated on down row's front roll and down the outer last volume of row's back roll send band, the said volume of going up send band to be coated with air-breathing wet cloth, last volume send to be with and is coated with down air-breathing wet cloth; Said go up last air-breathing wet cloth that volume send the band bottom and last volume send the following air-breathing wet cloth of being with top near the outside contact, said last volume send the following air-breathing wet cloth of the bottom of band to be immersed in interior the dissolving in the reducing solution of Soaking basin, the front end of said housing is provided with into mouth.
Further, in order to improve solute effect, the above-mentioned volume Work-feeding means of going up also comprises and upward arranges roller near what the inboard volume sent band between the row of being arranged on front roll and the row's of the going up back roll; Said last volume Work-feeding means also comprises and is arranged on down row's front roll and down send lower roll of band near the inboard volume between row's back roll.
The upper and lower volume Work-feeding means can have multiple version, can be that the row's of going up front roll and last row's back roll are with row's front roll is parallel to each other with following row's back roll down.Also can be that the row's of going up front roll is higher slightly than last row's back roll position; Under arrange front roll than down row's back roll position is low slightly; Said go up volume send the band row of being coated on front roll, on arrange back roll and upward arrange outside the roller; Last volume send band be coated on down row's front roll, down arrange back roll and lower roll outer after, its anterior formation horn mouth.
Said gear drive comprises the drive pulley that is arranged on the drive motors output shaft, be arranged on down the preceding output belt pulley of row's front roll one side, be arranged on down row's back roll one side back output belt pulley and with the coaxial mounted row down of drive pulley front drive gear; Said drive pulley, preceding output belt pulley and back output belt pulley are through same belt connection, and the said row's of going up front roll one side is provided with and the row's of going up preamble gear of arranging the front drive gear engagement down.
Further, be respectively equipped with the row's of the going up rear drive gear and following row back synchromesh gear that is meshed on the same side shaft of the said row's of going up back roll and following row's back roll.
Operation principle of the present invention is achieved in that drive motors drives upper and lower volume and send band inwardly to be synchronized with the movement; Last volume send the outer following air-breathing wet cloth that coats of band because be immersed in the basin dissolve in the reducing solution but wet; Because it send the outer last air-breathing wet cloth that coats of band to contact with last volume thereby also makes air-breathing wet cloth also have the identical reducing solution that dissolves; When the gas that is processed was arranged into about in the of two between the air-breathing wet cloth, the reducing solution that dissolves on the air-breathing up and down wet cloth dissolved or restores harmful substance, and harmful substance is brought in the Soaking basin; As dissolve be oil smoke the time, dissolving above the reducing solution floating to have one deck oil and cigarette ash; When dissolving coal smoke, dissolving can deposition one deck coal ash below the reducing solution.Upper and lower volume send the band shuttling movement during work, and Soaking basin harmful substance inside runs up to after the some and can remove the reducing solution that dissolves that wash clean more renews to Soaking basin.
The present invention inhales the gas that pollutes and is rolled onto up and down on the air-breathing wet cloth; With the aqueous or pasty state solvent of oil contained in the solubilized waste gas, coal, toluene, xylenes or complicated harmful chemical mixture etc., make to be processed gas and to be dissolved as liquid on the upper and lower air-breathing wet cloth.The present invention is suitable for handling toxic smoke, dust of kitchen fume, factory's coal smoke, automobile exhaust gas, the contaminated air of indoor and outdoor, indoor and outdoor etc., and range of application is wide.
Below in conjunction with accompanying drawing the present invention is further described.
Description of drawings
Fig. 1 is the structural representation (dismounting loam cake) after the present invention and the smoke extractor combination;
Fig. 2 removes side cover, advances the plan structure sketch map of mouth up the time for oil smoke coal smoke water machine of the present invention;
Structural representation when Fig. 3 is arranged on top for drive motors;
Fig. 4 is the structural representation (dismounting housing) of operation principle of the present invention;
Fig. 5 is the structural representation (dismounting housing) of operation principle of the present invention;
Fig. 6 is the structural representation of first kind of embodiment of upper and lower volume Work-feeding means of the present invention;
Fig. 7 is the structural representation of second kind of embodiment of upper and lower volume Work-feeding means of the present invention;
Fig. 8 is the structural representation of the third embodiment of upper and lower volume Work-feeding means of the present invention;
Fig. 9 is the structural representation of the 4th kind of embodiment of upper and lower volume Work-feeding means of the present invention;
Figure 10 is the structural representation of the 5th kind of embodiment of upper and lower volume Work-feeding means of the present invention;
Figure 11 is the structural representation of six kinds of embodiment of upper and lower volume Work-feeding means of the present invention the;
Figure 12 is the structural representation of seven kinds of embodiment of upper and lower volume Work-feeding means of the present invention the;
Figure 13 is the structural representation of eight kinds of embodiment of upper and lower volume Work-feeding means of the present invention the.
The specific embodiment
Shown in Fig. 1-5; The present invention is a kind of oil smoke coal smoke water machine; Its structure comprises housing 1, be arranged on the drive motors 2 in the housing 1, the gear drive that is connected with drive motors 2 output shafts, on roll up Work-feeding means, last volume Work-feeding means, install at the removable Soaking basin 6 of last volume Work-feeding means bottom and be contained in and dissolve reducing solution 7 in the Soaking basin 6; Wherein, roll up on Work-feeding means comprise row's front roll 31, on arrange outer upward the rolling up to send and be with 33 of back roll 32 and the row of being coated on front roll 31 and the row's of going up back roll 32; The last volume Work-feeding means comprise following row's front roll 41, down arrange back roll 42 and be coated on down row's front roll 41 and down the last volumes outside row's back roll 42 send and be with 43, last volume send is with 33 to be coated with air-breathing wet cloth 51, last volume send is with 43 to be coated with down air-breathing wet cloth 52; Last volume send with the last air-breathing wet cloth 51 of 33 bottoms and last volume send with the following air-breathing wet cloth 52 on 43 tops near the outside contact, last volume send the following air-breathing wet cloth 52 with 43 bottom to be immersed in Soaking basin 6 interior dissolving in the reducing solution 7, the front end of housing 1 is provided with into mouth.
When being used in the kitchen and handling oil smoke, as shown in Figure 1, the structural representation (dismounting loam cake) after the present invention and smoke extractor 10 combinations, smoke extractor 10 is provided with exhaust opening 11 in a side, and exhaust opening 11 stretches into that the front end of housing 1 is provided with advances mouth aligning horn mouth 8.Dissolve reducing solution 7 and be organic solvent or inorganic solvent, organic solvent comprises liquid detergent, suds, alkane, alkene, alcohol, aldehyde, amine, ester, ether, ketone, aromatic hydrocarbon, hydrogenate hydrocarbon, terpene hydrocarbon, halogenated hydrocarbons, jeterocyclic chemistry thing, nitrogen-containing compound and sulfur-containing compound or the like.Inorganic solvent is a water etc.Dissolve reducing solution 7 according to the preparation separately again of concrete needs.
As shown in Figure 3, when being used for the vehicle exhaust processing, the structural representation when drive motors 2 is arranged on top.The mouth that advances of the front end of housing 1 designs according to the shape of automobile exhaust pipe accordingly.
The present invention is when dissolving the different gas of reduction, and the mouth that advances of the front end of housing 1 is done corresponding design according to the shape of the object institute emission gases mouth of dissolving reduction.
Like Fig. 4-9,12, shown in 13, on roll up Work-feeding means comprise row's front roll 31, on arrange outer upward the rolling up to send and be with 33 of back roll 32 and the row of being coated on front roll 31 and the row's of going up back roll 32; The last volume Work-feeding means comprise following row's front roll 41, down arrange back roll 42 and be coated on down row's front roll 41 and down the last volumes outside row's back roll 42 send and be with 43.Last volume Work-feeding means also comprise between the row of being arranged on front roll 31 and the row's of the going up back roll 32 near the inboard volume send with 33 upward arrange roller 34; The last volume Work-feeding means also comprises and is arranged on down row's front roll 41 and down send lower roll 44 with 43 near inboard last volume between row's back roll 42.
Shown in Fig. 4-9; Last row's front roll 31 is higher slightly than last row's back roll 32 positions; Under arrange front roll 41 than row's back roll 42 positions are low slightly down; Last volume send be with 33 row's of being coated on front rolls 31, on arrange outside back roll 32 and the row's of the going up roller 34, last volume send be with 43 be coated on down row's front roll 41, down arrange back roll 42 and lower roll 44 outer after, its anterior formation horn mouth 8.
As shown in Figure 4; Said gear drive comprises the drive pulley 90 that is arranged on drive motors 2 output shafts, be arranged on down the preceding output belt pulley 95 of row's front roll 41 1 sides, be arranged on down row's back roll 42 1 sides back output belt pulley 97 and with the drive pulley 90 coaxial mounted front drive gear 91 of row down; Said drive pulley 90, preceding output belt pulley 95 and back output belt pulley 97 connect through same belt 96, and the said row's of going up front roll 31 1 sides are provided with and the row's of going up preamble gear 92 of row's front drive gear 91 engagements down.Be respectively equipped with the row's of the going up rear drive gear 93 and following row back synchromesh gear 94 that are meshed on the same side shaft of last row's back roll 32 and following row's back roll 42.During enforcement, as the case may be, volume send with 33 and send with under 43 situation about being synchronized with the movement with last volume on guaranteeing, synchromesh gear 94 after not necessarily leaveing no choice but the row of employing rear drive gear 93 and arranging down is as shown in Figure 3.
Shown in Fig. 4-9, according to handle volume and the volume size of gas, the anterior horn mouth 8 that forms is provided with the change water machine of different volumes, on to arrange roller 34 can be one or more with lower roll 44.
Like Figure 10,12, shown in 13, the change water machine of different volumes is set, on arrange roller 34 and can not be provided with lower roll 44, perhaps be provided with one or more.Last row's front roll 31 is with last row's back roll 32 and arrange front roll 41 down and arrange back roll 42 down parallel to each other.
Shown in figure 11, for very little gas treatment amount, just the row's of setting front roll 31 and volume send and are with 33, arrange down front roll 41 and volume and send and be with 43.
The foregoing description is a preferred implementation of the present invention; But embodiment of the present invention is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (8)
1. oil smoke coal smoke water machine; It is characterized in that: comprise housing (1), be arranged on the drive motors (2) in the housing (1), the gear drive that is connected with drive motors (2) output shaft, on roll up Work-feeding means, last volume Work-feeding means, install at the removable Soaking basin (6) of last volume Work-feeding means bottom and be contained in and dissolve reducing solution (7) in the Soaking basin (6); Wherein, said go up the volume Work-feeding means comprise row's front roll (31), on arrange upward rolling up outside back roll (32) and the row of being coated on front roll (31) and the last row's back roll (32) and send band (33); Said last volume Work-feeding means comprises down row's front roll (41), arranges back roll (42) and be coated on down row's front roll (41) and send band (43) with the last volume of arranging outside the back roll (42) down down; The said volume of going up send band (33) to be coated with air-breathing wet cloth (51), and last volume send band (43) to be coated with down air-breathing wet cloth (52); Said go up following air-breathing wet cloth (52) that last air-breathing wet cloth (51) that volume send band (33) bottom and last volume send band (43) top near the outside contact; Said last volume send the following air-breathing wet cloth (52) of the bottom of band (43) to be immersed in dissolving in the reducing solution (7) in the Soaking basin (6), and the front end of said housing (1) is provided with into mouth.
2. oil smoke coal smoke water machine according to claim 1 is characterized in that: said go up the volume Work-feeding means also comprise between the row of being arranged on front roll (31) and the last row's back roll (32) near the inboard roll up send band (33) upward arrange roller (34); Said last volume Work-feeding means also comprises and is arranged on down row's front roll (41) and down send the lower roll (44) of band (43) near inboard last volume between row's back roll (42).
3. oil smoke coal smoke water machine according to claim 1 and 2 is characterized in that: the said row's of going up front roll (31) and last row's back roll (32) are with following row's front roll (41) and row's back roll (42) is parallel to each other down.
4. oil smoke coal smoke water machine according to claim 1 and 2; It is characterized in that: the said row's of going up front roll (31) is higher slightly than last row's back roll (32) position; Under arrange front roll (41) than down row's back roll (42) position is low slightly; Said go up volume send band (33) row of being coated on front roll (31), on arrange outside back roll (32) and the last row's roller (34), last volume send band (43) to be coated on down and arranges front roll (41), arrange outside back roll (42) and the lower roll (44) down after, its front portion formation horn mouth (8).
5. oil smoke coal smoke water machine according to claim 1; It is characterized in that: said gear drive comprises the drive pulley (90) that is arranged on drive motors (2) output shaft, be arranged on down the preceding output belt pulley (95) of row's front roll (41) one sides, be arranged on down row's back roll (42) one sides back output belt pulley (97) and with the coaxial mounted row down of drive pulley (90) front drive gear (91); Said drive pulley (90), preceding output belt pulley (95) and back output belt pulley (97) connect through same belt (96), and the said row's of going up front roll (31) one sides are provided with the row's of the going up preamble gear (92) with row's front drive gear (91) engagement down.
6. oil smoke coal smoke water machine according to claim 5 is characterized in that: be respectively equipped with the row's of the going up rear drive gear (93) that is meshed on the same side shaft of the said row's of going up back roll (32) and following row's back roll (42) and arrange back synchromesh gear (94) down.
7. oil smoke coal smoke water machine according to claim 1 is characterized in that: the said exhaust opening (11) that advances mouth setting and smoke extractor (10) is suitable.
8. oil smoke coal smoke water machine according to claim 1 is characterized in that: the said reducing solution (7) that dissolves is organic solvent or inorganic solvent.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110202033 CN102380300B (en) | 2011-07-11 | 2011-07-11 | Lampblack and soot liquefying machine |
| PCT/CN2012/000815 WO2013007098A1 (en) | 2011-07-11 | 2012-06-13 | Oil smoke and coal smoke liquefier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110202033 CN102380300B (en) | 2011-07-11 | 2011-07-11 | Lampblack and soot liquefying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102380300A true CN102380300A (en) | 2012-03-21 |
| CN102380300B CN102380300B (en) | 2013-07-03 |
Family
ID=45820378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110202033 Active CN102380300B (en) | 2011-07-11 | 2011-07-11 | Lampblack and soot liquefying machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102380300B (en) |
| WO (1) | WO2013007098A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013007098A1 (en) * | 2011-07-11 | 2013-01-17 | Zhao Songhe | Oil smoke and coal smoke liquefier |
| CN105920975A (en) * | 2016-06-08 | 2016-09-07 | 赵松和 | Oily soot-dust-caused air pollution treatment device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101327389A (en) * | 2007-06-23 | 2008-12-24 | 张连勇 | Long-acting type oil smoke purification system technique |
| CN201314610Y (en) * | 2008-11-12 | 2009-09-23 | 欧阳孟友 | Environment protecting range hood free of oil-smoke exhaust |
| CN201361521Y (en) * | 2008-12-30 | 2009-12-16 | 黄立维 | Purifier for harmful waste gas |
| CN202146707U (en) * | 2011-07-11 | 2012-02-22 | 赵松和 | Dissolving machine for lampblack and soot |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5835722B2 (en) * | 1980-12-26 | 1983-08-04 | 松下電器産業株式会社 | Ultra-thin film manufacturing method and device |
| JP3735977B2 (en) * | 1996-10-29 | 2006-01-18 | 千代田化工建設株式会社 | Flue gas desulfurization equipment |
| CN1628891A (en) * | 2004-03-23 | 2005-06-22 | 陈茂潮 | Multifunctional filtering and purifying device |
| CN2903740Y (en) * | 2006-04-29 | 2007-05-23 | 陈其明 | Combined circle fume exhausting, sterilizing, storing burner |
| CN102380300B (en) * | 2011-07-11 | 2013-07-03 | 赵松和 | Lampblack and soot liquefying machine |
-
2011
- 2011-07-11 CN CN 201110202033 patent/CN102380300B/en active Active
-
2012
- 2012-06-13 WO PCT/CN2012/000815 patent/WO2013007098A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101327389A (en) * | 2007-06-23 | 2008-12-24 | 张连勇 | Long-acting type oil smoke purification system technique |
| CN201314610Y (en) * | 2008-11-12 | 2009-09-23 | 欧阳孟友 | Environment protecting range hood free of oil-smoke exhaust |
| CN201361521Y (en) * | 2008-12-30 | 2009-12-16 | 黄立维 | Purifier for harmful waste gas |
| CN202146707U (en) * | 2011-07-11 | 2012-02-22 | 赵松和 | Dissolving machine for lampblack and soot |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013007098A1 (en) * | 2011-07-11 | 2013-01-17 | Zhao Songhe | Oil smoke and coal smoke liquefier |
| CN105920975A (en) * | 2016-06-08 | 2016-09-07 | 赵松和 | Oily soot-dust-caused air pollution treatment device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013007098A1 (en) | 2013-01-17 |
| CN102380300B (en) | 2013-07-03 |
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Effective date of registration: 20191112 Address after: 215400, 101, building 1, 64 Middle Market Road, Lu Lu, Taicang, Jiangsu, Suzhou Patentee after: SUZHOU TASHANSHI ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Address before: 325603 Zhejiang province Yueqing North Baixiang town Lai Zhai Cun Patentee before: Zhao Songhe |
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Address after: No. 35, Yueyang Road, Shaxi Town, Taicang City, Suzhou City, Jiangsu Province Patentee after: SUZHOU TASHANSHI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 215400, 101, building 1, 64 Middle Market Road, Lu Lu, Taicang, Jiangsu, Suzhou Patentee before: SUZHOU TASHANSHI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |