CN201835399U - Wall surface acoustic treatment diffusion sound absorber of two-edge body structure with round angles - Google Patents
Wall surface acoustic treatment diffusion sound absorber of two-edge body structure with round angles Download PDFInfo
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- CN201835399U CN201835399U CN2010202097761U CN201020209776U CN201835399U CN 201835399 U CN201835399 U CN 201835399U CN 2010202097761 U CN2010202097761 U CN 2010202097761U CN 201020209776 U CN201020209776 U CN 201020209776U CN 201835399 U CN201835399 U CN 201835399U
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- diffusion sound
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CN2010202097761U CN201835399U (en) | 2010-05-27 | 2010-05-27 | Wall surface acoustic treatment diffusion sound absorber of two-edge body structure with round angles |
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CN2010202097761U CN201835399U (en) | 2010-05-27 | 2010-05-27 | Wall surface acoustic treatment diffusion sound absorber of two-edge body structure with round angles |
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CN201835399U true CN201835399U (en) | 2011-05-18 |
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CN2010202097761U Expired - Fee Related CN201835399U (en) | 2010-05-27 | 2010-05-27 | Wall surface acoustic treatment diffusion sound absorber of two-edge body structure with round angles |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111255110A (en) * | 2020-03-10 | 2020-06-09 | 东莞瑞森新谱声学科技有限公司 | Automatic-control drawer-type adjustable sound absorption system and control method thereof |
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2010
- 2010-05-27 CN CN2010202097761U patent/CN201835399U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111255110A (en) * | 2020-03-10 | 2020-06-09 | 东莞瑞森新谱声学科技有限公司 | Automatic-control drawer-type adjustable sound absorption system and control method thereof |
CN111255110B (en) * | 2020-03-10 | 2021-04-13 | 东莞瑞森新谱声学科技有限公司 | Automatic-control drawer-type adjustable sound absorption system and control method thereof |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20160613 Address after: 200434 Shanghai, Hongkou District Guang Ji Road, building B, room 800, No. 223 Patentee after: Fadiman's multimedia technology (Shanghai) Co. Ltd. Address before: 201702, Shanghai Qingpu District, Shanghai Qing Ping highway 2400 Patentee before: Enpei Audio Equipment (Shanghai) Co., Ltd. Effective date of registration: 20160613 Address after: 200434 Shanghai, Hongkou District Guang Ji Road, building B, room 800, No. 223 Patentee after: Fadiman's multimedia technology (Shanghai) Co. Ltd. Address before: 201702, Shanghai Qingpu District, Shanghai Qing Ping highway 2400 Patentee before: Enpei Audio Equipment (Shanghai) Co., Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20190527 |
|
CF01 | Termination of patent right due to non-payment of annual fee |