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Inventor

ZHANG YONGLIN

CN3 patents
⚠️ This page may combine multiple inventors who share the name “ZHANG YONGLIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHINA NAT PETROLEUM CORP

1 patent

ZHEJIANG ZHUJI UNITED CHEMICALS CO LTD

1 patent

HONGYUN HONGHE TOBACCO GROUP

1 patent