CN207637617U - 一种环形音频变压器 - Google Patents
一种环形音频变压器 Download PDFInfo
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- CN207637617U CN207637617U CN201721438300.3U CN201721438300U CN207637617U CN 207637617 U CN207637617 U CN 207637617U CN 201721438300 U CN201721438300 U CN 201721438300U CN 207637617 U CN207637617 U CN 207637617U
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- box body
- sealing cover
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- frequency transformer
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CN201721438300.3U CN207637617U (zh) | 2017-11-01 | 2017-11-01 | 一种环形音频变压器 |
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CN201721438300.3U CN207637617U (zh) | 2017-11-01 | 2017-11-01 | 一种环形音频变压器 |
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CN207637617U true CN207637617U (zh) | 2018-07-20 |
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CN201721438300.3U Expired - Fee Related CN207637617U (zh) | 2017-11-01 | 2017-11-01 | 一种环形音频变压器 |
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Effective date of registration: 20190329 Granted publication date: 20180720 |
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PD01 | Discharge of preservation of patent |
Date of cancellation: 20190715 Granted publication date: 20180720 |
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TR01 | Transfer of patent right |
Effective date of registration: 20191127 Address after: No. 56, zhangjiapaizhong lane, Puzhou street, Longwan District, Wenzhou City, Zhejiang Province 325000 Patentee after: Fu Qiongyao Address before: 523000 Pauline industrial district, Dongguan, Guangdong Patentee before: DONGGUAN JIANJIE ELECTRONICS Co.,Ltd. |
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TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180720 Termination date: 20211101 |
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CF01 | Termination of patent right due to non-payment of annual fee |