CN202055756U - 中搅新型扩大头结构 - Google Patents
中搅新型扩大头结构 Download PDFInfo
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- CN202055756U CN202055756U CN2011201536145U CN201120153614U CN202055756U CN 202055756 U CN202055756 U CN 202055756U CN 2011201536145 U CN2011201536145 U CN 2011201536145U CN 201120153614 U CN201120153614 U CN 201120153614U CN 202055756 U CN202055756 U CN 202055756U
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Application Number | Priority Date | Filing Date | Title |
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CN2011201536145U CN202055756U (zh) | 2011-05-13 | 2011-05-13 | 中搅新型扩大头结构 |
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CN2011201536145U CN202055756U (zh) | 2011-05-13 | 2011-05-13 | 中搅新型扩大头结构 |
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CN202055756U true CN202055756U (zh) | 2011-11-30 |
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CN2011201536145U Expired - Fee Related CN202055756U (zh) | 2011-05-13 | 2011-05-13 | 中搅新型扩大头结构 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103015901A (zh) * | 2012-12-25 | 2013-04-03 | 张勇 | 扩孔器及其安装方法和操作方法 |
CN107630703A (zh) * | 2017-10-23 | 2018-01-26 | 中铁八局集团第二工程有限公司 | 带叶片可伸缩管幕顶进钻头 |
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2011
- 2011-05-13 CN CN2011201536145U patent/CN202055756U/zh not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103015901A (zh) * | 2012-12-25 | 2013-04-03 | 张勇 | 扩孔器及其安装方法和操作方法 |
CN103015901B (zh) * | 2012-12-25 | 2015-10-14 | 张勇 | 扩孔器及其安装方法和操作方法 |
CN107630703A (zh) * | 2017-10-23 | 2018-01-26 | 中铁八局集团第二工程有限公司 | 带叶片可伸缩管幕顶进钻头 |
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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: SHANGHAI CHENGDI CONSTRUCTION CO., LTD. Free format text: FORMER NAME: SHANGHAI CHENGDI CONSTRUCTION DEVELOPMENT CO., LTD. |
|
CP03 | Change of name, title or address |
Address after: 201806 B, zone 502-1, Lane 518, Lane 1, Jiading District, Shanghai Patentee after: Shanghai Chengdi Construction Co., Ltd. Address before: 200000 room 1, building 188, 126 Nanan Road, Anting Town, Shanghai, Jiading District Patentee before: Shanghai Chengdi Construction Development Co., Ltd. |
|
DD01 | Delivery of document by public notice |
Addressee: Bao Ming Document name: Notification of Passing Examination on Formalities |
|
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: 20111130 Termination date: 20200513 |