CN204013979U - 双喇叭耳机 - Google Patents
双喇叭耳机 Download PDFInfo
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- CN204013979U CN204013979U CN201420182584.4U CN201420182584U CN204013979U CN 204013979 U CN204013979 U CN 204013979U CN 201420182584 U CN201420182584 U CN 201420182584U CN 204013979 U CN204013979 U CN 204013979U
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- 230000004308 accommodation Effects 0.000 claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201420182584.4U CN204013979U (zh) | 2014-04-16 | 2014-04-16 | 双喇叭耳机 |
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CN201420182584.4U CN204013979U (zh) | 2014-04-16 | 2014-04-16 | 双喇叭耳机 |
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CN204013979U true CN204013979U (zh) | 2014-12-10 |
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CN201420182584.4U Expired - Fee Related CN204013979U (zh) | 2014-04-16 | 2014-04-16 | 双喇叭耳机 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103974160A (zh) * | 2014-04-16 | 2014-08-06 | 东莞泉声电子有限公司 | 双喇叭耳机 |
CN105657600A (zh) * | 2016-03-30 | 2016-06-08 | 苏州倍声声学技术有限公司 | 一种圈铁一体式受话器 |
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2014
- 2014-04-16 CN CN201420182584.4U patent/CN204013979U/zh not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103974160A (zh) * | 2014-04-16 | 2014-08-06 | 东莞泉声电子有限公司 | 双喇叭耳机 |
CN103974160B (zh) * | 2014-04-16 | 2018-08-14 | 东莞泉声电子有限公司 | 双喇叭耳机 |
CN105657600A (zh) * | 2016-03-30 | 2016-06-08 | 苏州倍声声学技术有限公司 | 一种圈铁一体式受话器 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
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: Dual-speaker headphone Effective date of registration: 20180118 Granted publication date: 20141210 Pledgee: Kingston Technology Corp. Pledgor: DONGGUAN TRANSOUND ELECTRONICS Co.,Ltd. Registration number: 2018990000059 |
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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: 20201224 Granted publication date: 20141210 Pledgee: Kingston Technology Corp. Pledgor: DONGGUAN TRANSOUND ELECTRONICS Co.,Ltd. Registration number: 2018990000059 |
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CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 |