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Inventor

YAN HUAFENG

CN5 patents
⚠️ This page may combine multiple inventors who share the name “YAN HUAFENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ZHEJIANG DAFENG IND CO LTD

3 patents

ZHANG HAIBING

1 patent

STATE GRID BLOCKCHAIN TECH BEIJING CO LTD

1 patent