CN212909999U - 一种发声装置的振膜及发声装置 - Google Patents
一种发声装置的振膜及发声装置 Download PDFInfo
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- CN212909999U CN212909999U CN202022395917.XU CN202022395917U CN212909999U CN 212909999 U CN212909999 U CN 212909999U CN 202022395917 U CN202022395917 U CN 202022395917U CN 212909999 U CN212909999 U CN 212909999U
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- diaphragm
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CN202022395917.XU CN212909999U (zh) | 2020-10-23 | 2020-10-23 | 一种发声装置的振膜及发声装置 |
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CN202022395917.XU CN212909999U (zh) | 2020-10-23 | 2020-10-23 | 一种发声装置的振膜及发声装置 |
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CN212909999U true CN212909999U (zh) | 2021-04-06 |
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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: 20211101 Address after: 024000 No. 2, economic development zone, Hongshan District, Chifeng City, Inner Mongolia Autonomous Region (west side of Danlong pharmaceutical) Patentee after: Chifeng zhuo'ou Electronic Technology Co.,Ltd. Address before: 024000 No.1 Economic Development Zone, Hongshan District, Chifeng City, Inner Mongolia Autonomous Region (west side of Danlong pharmaceutical) Patentee before: Inner Mongolia Enwo Electronic Technology Co.,Ltd. |
|
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: Diaphragm and sound producing device of a sound producing device Effective date of registration: 20220601 Granted publication date: 20210406 Pledgee: Zheshang Bank Co.,Ltd. Hohhot Branch Pledgor: Chifeng zhuo'ou Electronic Technology Co.,Ltd. Registration number: Y2022150000049 |