CN203258212U - 新型钢套钢蒸汽直埋管 - Google Patents
新型钢套钢蒸汽直埋管 Download PDFInfo
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- CN203258212U CN203258212U CN 201320268727 CN201320268727U CN203258212U CN 203258212 U CN203258212 U CN 203258212U CN 201320268727 CN201320268727 CN 201320268727 CN 201320268727 U CN201320268727 U CN 201320268727U CN 203258212 U CN203258212 U CN 203258212U
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Application Number | Priority Date | Filing Date | Title |
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CN 201320268727 CN203258212U (zh) | 2013-05-09 | 2013-05-09 | 新型钢套钢蒸汽直埋管 |
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CN 201320268727 CN203258212U (zh) | 2013-05-09 | 2013-05-09 | 新型钢套钢蒸汽直埋管 |
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CN203258212U true CN203258212U (zh) | 2013-10-30 |
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CN 201320268727 Expired - Fee Related CN203258212U (zh) | 2013-05-09 | 2013-05-09 | 新型钢套钢蒸汽直埋管 |
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CN (1) | CN203258212U (zh) |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C53 | Correction of patent for invention or patent application | ||
CB03 | Change of inventor or designer information |
Inventor after: Wang Jibin Inventor after: Li Jianpeng Inventor after: Sun Jiang Inventor after: Chai Chao Inventor before: Mao Jibin Inventor before: Li Jianpeng Inventor before: Sun Jiang Inventor before: Chai Chao |
|
COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: MAO JIBIN LI JIANPENG SUN JIANG CHAI CHAO TO: WANG JIBIN LI JIANPENG SUN JIANG CHAI CHAO |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20150509 |
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EXPY | Termination of patent right or utility model |