CN211081662U - 一种球筒及分离器专用爬梯 - Google Patents
一种球筒及分离器专用爬梯 Download PDFInfo
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GR01 | Patent grant | ||
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TR01 | Transfer of patent right |
Effective date of registration: 20200915 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: SINOPEC CHUANQI DONGSONG NATURAL GAS PIPELINE Co.,Ltd. Patentee after: China Petroleum & Chemical Corp. Address before: 432400 No. 126 Guanggu Avenue, Wuhan City, Hubei Province Patentee before: SINOPEC CHUANQI DONGSONG NATURAL GAS PIPELINE Co.,Ltd. |
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TR01 | Transfer of patent right | ||
CP01 | Change in the name or title of a patent holder |
Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: Sichuan East Natural Gas Pipeline Co.,Ltd. Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: SINOPEC CHUANQI DONGSONG NATURAL 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: 20211109 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: Sichuan East Natural Gas Pipeline Co.,Ltd. Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: Sichuan East Natural Gas Pipeline Co.,Ltd. |
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TR01 | Transfer of patent right |