CH

Chih-Ching Hsieh

KT Kabo Tool: 146 patents #1 of 1Top 100%
UN Unknown: 13 patents #477 of 83,584Top 1%
Overall (All Time): #1,044 of 4,157,543Top 1%
327
Patents All Time

Issued Patents All Time

Showing 326–327 of 327 patents

Patent #TitleCo-InventorsDate
5642649 Screwdriver with wrench engaging collar — 1997-07-01
5476024 Sleeve module for co-operating with a ratchet wrench — 1995-12-19