CN201778040U - 一种高炉开口机钎头与钎杆连接结构 - Google Patents
一种高炉开口机钎头与钎杆连接结构 Download PDFInfo
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- CN201778040U CN201778040U CN 201020271522 CN201020271522U CN201778040U CN 201778040 U CN201778040 U CN 201778040U CN 201020271522 CN201020271522 CN 201020271522 CN 201020271522 U CN201020271522 U CN 201020271522U CN 201778040 U CN201778040 U CN 201778040U
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- drill
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- drill bit
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Application Number | Priority Date | Filing Date | Title |
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CN 201020271522 CN201778040U (zh) | 2010-07-22 | 2010-07-22 | 一种高炉开口机钎头与钎杆连接结构 |
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CN 201020271522 CN201778040U (zh) | 2010-07-22 | 2010-07-22 | 一种高炉开口机钎头与钎杆连接结构 |
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CN201778040U true CN201778040U (zh) | 2011-03-30 |
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CN 201020271522 Expired - Lifetime CN201778040U (zh) | 2010-07-22 | 2010-07-22 | 一种高炉开口机钎头与钎杆连接结构 |
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CN (1) | CN201778040U (zh) |
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2010
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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 |
Free format text: FORMER OWNER: CAPITAL IRON + STEEL GENERAL CO. Effective date: 20140404 Owner name: BEIJING SHOUGANG CO., LTD. Free format text: FORMER OWNER: HEBEI SHOUGANG QIAN'AN STEEL CO., LTD. Effective date: 20140404 |
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C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 064404 TANGSHAN, HEBEI PROVINCE TO: 100041 SHIJINGSHAN, BEIJING |
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TR01 | Transfer of patent right |
Effective date of registration: 20140404 Address after: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee after: Beijing Shougang Co., Ltd. Address before: Yangzidian Town, Qian'an City, Hebei province 064404 Patentee before: Hebei Shougang Qian'an Steel Co., Ltd. Patentee before: Capital Iron & Steel General Company |
|
CX01 | Expiry of patent term |
Granted publication date: 20110330 |
|
CX01 | Expiry of patent term |