CN209881986U - 一种预警信号发布扩音箱 - Google Patents
一种预警信号发布扩音箱 Download PDFInfo
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- CN209881986U CN209881986U CN201920572304.3U CN201920572304U CN209881986U CN 209881986 U CN209881986 U CN 209881986U CN 201920572304 U CN201920572304 U CN 201920572304U CN 209881986 U CN209881986 U CN 209881986U
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- 238000009434 installation Methods 0.000 claims abstract description 28
- 238000002955 isolation Methods 0.000 claims abstract description 7
- 238000001179 sorption measurement Methods 0.000 claims description 9
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- 230000032683 aging Effects 0.000 abstract description 4
- 230000009977 dual effect Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
Description
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201920572304.3U CN209881986U (zh) | 2019-04-24 | 2019-04-24 | 一种预警信号发布扩音箱 |
Applications Claiming Priority (1)
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CN201920572304.3U CN209881986U (zh) | 2019-04-24 | 2019-04-24 | 一种预警信号发布扩音箱 |
Publications (1)
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CN209881986U true CN209881986U (zh) | 2019-12-31 |
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CN201920572304.3U Expired - Fee Related CN209881986U (zh) | 2019-04-24 | 2019-04-24 | 一种预警信号发布扩音箱 |
Country Status (1)
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CN (1) | CN209881986U (zh) |
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2019
- 2019-04-24 CN CN201920572304.3U patent/CN209881986U/zh not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20220402 Address after: Unit 2414-2416, main building, no.371, Wushan Road, Tianhe District, Guangzhou City, Guangdong Province Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: No. 86, Chang'an Street, Xicheng District, Beijing 100032 Patentee before: Hangzhou Bozer 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: A loudspeaker for early warning signal release Effective date of registration: 20220510 Granted publication date: 20191231 Pledgee: China Co. truction Bank Corp Guangzhou Tianhe subbranch Pledgor: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Registration number: Y2022980005322 |
|
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: 20230919 Granted publication date: 20191231 Pledgee: China Co. truction Bank Corp Guangzhou Tianhe subbranch Pledgor: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Registration number: Y2022980005322 |
|
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: 20191231 |