CN202731971U - 用齿轮传动的井下联络巷无压风门 - Google Patents
用齿轮传动的井下联络巷无压风门 Download PDFInfo
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- CN202731971U CN202731971U CN 201220430246 CN201220430246U CN202731971U CN 202731971 U CN202731971 U CN 202731971U CN 201220430246 CN201220430246 CN 201220430246 CN 201220430246 U CN201220430246 U CN 201220430246U CN 202731971 U CN202731971 U CN 202731971U
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CN 201220430246 CN202731971U (zh) | 2012-08-28 | 2012-08-28 | 用齿轮传动的井下联络巷无压风门 |
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CN 201220430246 CN202731971U (zh) | 2012-08-28 | 2012-08-28 | 用齿轮传动的井下联络巷无压风门 |
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Cited By (1)
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CN106894401A (zh) * | 2017-03-30 | 2017-06-27 | 浙江水利水电学院 | 对开式平衡闸门 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106894401A (zh) * | 2017-03-30 | 2017-06-27 | 浙江水利水电学院 | 对开式平衡闸门 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: TANGSHAN LUANXIANG MINING EQUIPMENT MANUFACTURING Free format text: FORMER OWNER: TANGSHAN KAISHI ELECTRICAL EQUIPMENT CO., LTD. Effective date: 20150731 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150731 Address after: 063000 East Village, two street, Kaiping Town, Kaiping District, Hebei, Tangshan City Patentee after: Tangshan Luanxiang Mining Equipment Manufacturing Co., Ltd. Address before: 063000, Hebei province Kaiping District Tangshan City tax Village Street Village Patentee before: TANGSHAN KAISHI ELECTROMECHANICAL EQUIPMENT CO., LTD. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20180828 |
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CF01 | Termination of patent right due to non-payment of annual fee |