CH

Chung-Tang Hsu

Overall (1997): #44,089 of 185,788Top 25%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5661991 Combination lock device 1997-09-02
5638708 Combination lock with latch bolt 1997-06-17