Chih-Yeh Chao

OC O-Ta Precision Casting Co.: 1 patents #2 of 3Top 70%

📍 Pingtung City, TW: #6 of 30 inventorsTop 20%

Overall (2004): #249,131 of 270,089Top 95%

Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6723007	Face of a golf club head	—	2004-04-20