CH

Chieh-Jen Hsiao

Overall (2002): #4,530 of 266,432Top 2%
7
Patents 2002

Issued Patents 2002

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
6450312 Easily direction-convertible ratchet assembly for a hand tool 2002-09-17
D461389 Tool handle 2002-08-13
6412373 Operating tool having shanks turnable relative to one another 2002-07-02
6402212 Magnetic sweeper 2002-06-11
6398135 Air spray device 2002-06-04
6363820 Hand tool for driving a fastener about an axis 2002-04-02
D453674 Tool handle 2002-02-19