CN213126375U - 一种校园音响防水防潮装置 - Google Patents
一种校园音响防水防潮装置 Download PDFInfo
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- CN213126375U CN213126375U CN202022439886.3U CN202022439886U CN213126375U CN 213126375 U CN213126375 U CN 213126375U CN 202022439886 U CN202022439886 U CN 202022439886U CN 213126375 U CN213126375 U CN 213126375U
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- 238000004078 waterproofing Methods 0.000 title claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 23
- 230000003028 elevating effect Effects 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 241001465754 Metazoa Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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CN202022439886.3U CN213126375U (zh) | 2020-10-28 | 2020-10-28 | 一种校园音响防水防潮装置 |
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CN202022439886.3U CN213126375U (zh) | 2020-10-28 | 2020-10-28 | 一种校园音响防水防潮装置 |
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CN213126375U true CN213126375U (zh) | 2021-05-04 |
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CN202022439886.3U Expired - Fee Related CN213126375U (zh) | 2020-10-28 | 2020-10-28 | 一种校园音响防水防潮装置 |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A waterproof and moisture-proof device for campus audio Effective date of registration: 20220908 Granted publication date: 20210504 Pledgee: Bohai Bank Co.,Ltd. Tianjin Branch Pledgor: China Diantong (Tianjin) Technology Co.,Ltd. Registration number: Y2022120000052 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230828 Granted publication date: 20210504 Pledgee: Bohai Bank Co.,Ltd. Tianjin Branch Pledgor: China Diantong (Tianjin) Technology Co.,Ltd. Registration number: Y2022120000052 |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210504 |