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Inventor

LIU BOYAN

CN2 patents
⚠️ This page may combine multiple inventors who share the name “LIU BOYAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LI YIHAN

1 patent

GUANGDONG WELDING INST CHINA UKRAINE E O PATON INST OF WELDING

1 patent