CN202031616U - 防开裂的液压支架顶梁唇口 - Google Patents
防开裂的液压支架顶梁唇口 Download PDFInfo
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- CN202031616U CN202031616U CN2011200949047U CN201120094904U CN202031616U CN 202031616 U CN202031616 U CN 202031616U CN 2011200949047 U CN2011200949047 U CN 2011200949047U CN 201120094904 U CN201120094904 U CN 201120094904U CN 202031616 U CN202031616 U CN 202031616U
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Application Number | Priority Date | Filing Date | Title |
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CN2011200949047U CN202031616U (zh) | 2011-04-01 | 2011-04-01 | 防开裂的液压支架顶梁唇口 |
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CN2011200949047U CN202031616U (zh) | 2011-04-01 | 2011-04-01 | 防开裂的液压支架顶梁唇口 |
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CN202031616U true CN202031616U (zh) | 2011-11-09 |
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CN2011200949047U Expired - Lifetime CN202031616U (zh) | 2011-04-01 | 2011-04-01 | 防开裂的液压支架顶梁唇口 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102182479A (zh) * | 2011-04-01 | 2011-09-14 | 中煤北京煤矿机械有限责任公司 | 防开裂的液压支架顶梁唇口 |
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2011
- 2011-04-01 CN CN2011200949047U patent/CN202031616U/zh not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102182479A (zh) * | 2011-04-01 | 2011-09-14 | 中煤北京煤矿机械有限责任公司 | 防开裂的液压支架顶梁唇口 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: CHINA NATIONAL COAL MINING EQUIPMENT CO., LTD. Effective date: 20120227 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20120227 Address after: 102400 Beijing city Fangshan District Mill Road No. 1 Co-patentee after: China National Coal Mining Equipment Co., Ltd. Patentee after: China Coal Beijing Coal Mining Machinery Co., Ltd. Address before: 102400 Beijing city Fangshan District Mill Road No. 1 Patentee before: China Coal Beijing Coal Mining Machinery Co., Ltd. |
|
AV01 | Patent right actively abandoned |
Granted publication date: 20111109 Effective date of abandoning: 20140813 |
|
RGAV | Abandon patent right to avoid regrant |