GS

Genroku Sugiyama

HC Hitachi Construction Machinery Co.: 1 patents #16 of 51Top 35%
📍 Ryugasaki, JP: #3 of 10 inventorsTop 30%
Overall (1994): #132,043 of 165,921Top 80%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5315826 Hydraulic drive system and directional control valve Toichi Hirata 1994-05-31