ES

Eisuke Sugahara

NC Nippon Piston Ring Co.: 2 patents #59 of 208Top 30%
Overall (All Time): #2,359,850 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4475496 Valve mechanism — 1984-10-09
4197930 Air clutch with centrifugal force cancellation device — 1980-04-15