INTERNATIONAL PATENT: CHANGQING ENGINEERING DESIGN CO., LTD., 长庆工程设计有限公司, CHINA NATIONAL PETROLEUM CORPORATION, 中国石油天然气集团有限公司 FILES APPLICATION FOR "OILFIELD POLYMER INJECTION APPARATUS"

Posted On: 2026-03-02

GENEVA, March 2 -- CHANGQING ENGINEERING DESIGN CO., LTD. (Changqing Xinglongyuan Community, Weiyang District,Xi'an, Shaanxi 710008), 长庆工程设计有限公司 (中国陕西省西安市未央区长庆兴隆园小区), CHINA NATIONAL PETROLEUM CORPORATION (9 Dongzhimen North Street,Dongcheng District, Beijing 100007), 中国石油天然气集团有限公司 (中国北京市东城区东直门北大街9号) filed a patent application (PCT/CN2024/143839) for "OILFI...

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इस लेख के रीप्रिंट को खरीदने या इस प्रकाशन का पूरा फ़ीड प्राप्त करने के लिए, कृपया हमे संपर्क करें.

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INTERNATIONAL PATENT: CHANGQING ENGINEERING DESIGN CO., LTD., 长庆工程设计有限公司, CHINA NATIONAL PETROLEUM CORPORATION, 中国石油天然气集团有限公司 FILES APPLICATION FOR "OILFIELD POLYMER INJECTION APPARATUS"