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OI Osaka Diamond Industrial: 1 patents #16 of 39Top 45%
Overall (All Time): #4,036,793 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4456577 Methods for producing composite rotary dresser Takao Kawakita, Kazuo Yamaguchi 1984-06-26