KM

Kentaro Magara

NC Nippon Piston Ring Co.: 1 patents #120 of 208Top 60%
Overall (All Time): #4,105,223 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4185842 Seal ring — 1980-01-29