HS

Hidehiko Seki

SS Suwa Seikosha: 1 patents #103 of 220Top 50%
Overall (All Time): #4,113,810 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4207731 Electronic timepiece control circuit — 1980-06-17