CN202818334U - 矿用语音播放系统 - Google Patents
矿用语音播放系统 Download PDFInfo
- Publication number
- CN202818334U CN202818334U CN 201220403307 CN201220403307U CN202818334U CN 202818334 U CN202818334 U CN 202818334U CN 201220403307 CN201220403307 CN 201220403307 CN 201220403307 U CN201220403307 U CN 201220403307U CN 202818334 U CN202818334 U CN 202818334U
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- CN
- China
- Prior art keywords
- intrinsic safety
- audio amplifier
- main frame
- play back
- safety audio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
Description
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220403307 CN202818334U (zh) | 2012-08-14 | 2012-08-14 | 矿用语音播放系统 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220403307 CN202818334U (zh) | 2012-08-14 | 2012-08-14 | 矿用语音播放系统 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202818334U true CN202818334U (zh) | 2013-03-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220403307 Expired - Fee Related CN202818334U (zh) | 2012-08-14 | 2012-08-14 | 矿用语音播放系统 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202818334U (zh) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104202107A (zh) * | 2014-09-16 | 2014-12-10 | 合肥协知行信息系统工程有限公司 | 一种矿井应急广播系统 |
| CN105869617A (zh) * | 2016-03-25 | 2016-08-17 | 北京海尔集成电路设计有限公司 | 一种基于中国数字音频广播的卡拉ok装置 |
-
2012
- 2012-08-14 CN CN 201220403307 patent/CN202818334U/zh not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104202107A (zh) * | 2014-09-16 | 2014-12-10 | 合肥协知行信息系统工程有限公司 | 一种矿井应急广播系统 |
| CN105869617A (zh) * | 2016-03-25 | 2016-08-17 | 北京海尔集成电路设计有限公司 | 一种基于中国数字音频广播的卡拉ok装置 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Denomination of utility model: Voice broadcasting system for mine Effective date of registration: 20130605 Granted publication date: 20130320 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2013990000351 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20140604 Granted publication date: 20130320 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2013990000351 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Voice broadcasting system for mine Effective date of registration: 20140605 Granted publication date: 20130320 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2014990000436 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20150529 Granted publication date: 20130320 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2014990000436 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Voice broadcasting system for mine Effective date of registration: 20150604 Granted publication date: 20130320 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: Changzhou Lianli Automation Technology Co., Ltd. Registration number: 2015990000434 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20150814 |
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| EXPY | Termination of patent right or utility model |