YW

Yoshihiko Watanabe

HC Hitachi Koki Co.: 1 patents #4 of 13Top 35%
📍 Susono, JP: #16 of 32 inventorsTop 50%
Overall (1982): #21,652 of 81,411Top 30%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4336847 Percussion drill Koshichi Ito 1982-06-29