CN204366938U - 一种管线连头划线器 - Google Patents
一种管线连头划线器 Download PDFInfo
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- CN204366938U CN204366938U CN201420766432.9U CN201420766432U CN204366938U CN 204366938 U CN204366938 U CN 204366938U CN 201420766432 U CN201420766432 U CN 201420766432U CN 204366938 U CN204366938 U CN 204366938U
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CN201420766432.9U CN204366938U (zh) | 2014-12-08 | 2014-12-08 | 一种管线连头划线器 |
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CN201420766432.9U CN204366938U (zh) | 2014-12-08 | 2014-12-08 | 一种管线连头划线器 |
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CN204366938U true CN204366938U (zh) | 2015-06-03 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder |
Address after: 100007 Oil Mansion, 9 North Avenue, Dongcheng District, Beijing, Dongzhimen Patentee after: PetroChina Co.,Ltd. Patentee after: National Pipe Network Group Beijing Pipeline Co.,Ltd. Address before: 100007 Oil Mansion, 9 North Avenue, Dongcheng District, Beijing, Dongzhimen Patentee before: PetroChina Co.,Ltd. Patentee before: PETROCHINA BEIJING GAS PIPELINE Co.,Ltd. |
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CP01 | Change in the name or title of a patent holder | ||
TR01 | Transfer of patent right |
Effective date of registration: 20211223 Address after: Room 08-10, 6 / F, block a, No. 5, Dongtucheng Road, Chaoyang District, Beijing 100013 Patentee after: National Petroleum and natural gas pipeline network Group Co.,Ltd. Patentee after: National Pipe Network Group Beijing Pipeline Co., Ltd Address before: 100007 Oil Mansion, 9 North Avenue, Dongcheng District, Beijing, Dongzhimen Patentee before: PETROCHINA Co.,Ltd. Patentee before: National Pipe Network Group Beijing Pipeline Co., Ltd |
|
TR01 | Transfer of patent right |