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Inventor

DU QI-JIAN

CN9 patents
⚠️ This page may combine multiple inventors who share the name “DU QI-JIAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHIANG CHWAN-HWA

4 patents

DU QI-JIAN

4 patents

SHENZHEN FUTAIHONG PREC IND CO

1 patent