CN204596304U - 用于智趣型周转轮系综合教具的滑动结构 - Google Patents
用于智趣型周转轮系综合教具的滑动结构 Download PDFInfo
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- CN204596304U CN204596304U CN201520039426.8U CN201520039426U CN204596304U CN 204596304 U CN204596304 U CN 204596304U CN 201520039426 U CN201520039426 U CN 201520039426U CN 204596304 U CN204596304 U CN 204596304U
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C14 | Grant of patent or utility model | ||
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CB03 | Change of inventor or designer information |
Inventor after: Dong Wenlong Inventor after: Ding Yangke Inventor after: Zhu Guilin Inventor after: Chen Guangyao Inventor after: Bing Yuan Inventor after: Xia Hang Inventor before: Dong Wenlong Inventor before: Zhu Guilin Inventor before: Chen Guangyao Inventor before: Bing Yuan Inventor before: Xia Hang |
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COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: DONG WENLONG ZHU GUILIN CHEN GUANGYAO BING YUAN XIA HANG TO: DONG WENLONG DING YANGKE ZHU GUILIN CHEN GUANGYAO BING YUAN XIA HANG |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20180120 |
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CF01 | Termination of patent right due to non-payment of annual fee |