CN203321578U - 矿井压风自救装置 - Google Patents
矿井压风自救装置 Download PDFInfo
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- CN203321578U CN203321578U CN2013203891526U CN201320389152U CN203321578U CN 203321578 U CN203321578 U CN 203321578U CN 2013203891526 U CN2013203891526 U CN 2013203891526U CN 201320389152 U CN201320389152 U CN 201320389152U CN 203321578 U CN203321578 U CN 203321578U
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Application Number | Priority Date | Filing Date | Title |
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CN2013203891526U CN203321578U (zh) | 2013-07-02 | 2013-07-02 | 矿井压风自救装置 |
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CN2013203891526U CN203321578U (zh) | 2013-07-02 | 2013-07-02 | 矿井压风自救装置 |
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CN203321578U true CN203321578U (zh) | 2013-12-04 |
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CN2013203891526U Expired - Fee Related CN203321578U (zh) | 2013-07-02 | 2013-07-02 | 矿井压风自救装置 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: SHANDONG ZHONGDUN ELECTRICAL EQUIPMENT CO., LTD. Free format text: FORMER NAME: JINAN ZHONGDUN ELECTRICAL EQUIPMENT CO., LTD. |
|
CP03 | Change of name, title or address |
Address after: 250000 Shandong city of Ji'nan province high tech Zone Development Road West Street to the north of Qinyuan Patentee after: SHANDONG ZHONGDUN ELECTRICAL EQUIPMENT CO., LTD. Address before: 250000, Ji'nan 6 high tech Zone in Shandong province north of the first Swiss Pu Industrial Park on the first floor Patentee before: Jinan Zhongdun Electrical Equipment Co., Ltd. |
|
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: 20131204 Termination date: 20160702 |