YO

Yukio Okubo

SC Shigematsu Works Co.: 1 patents #11 of 16Top 70%
Overall (All Time): #4,010,642 of 4,157,543Top 100%
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Patent #TitleCo-InventorsDate
4501272 Mask Kaisaburo Shigematsu, Nobuo Shigematsu 1985-02-26