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Kunio Kai

SK Sekiyushigen Kaihatsu Kabushiki Kaisha: 1 patents #18 of 29Top 65%
Overall (All Time): #3,885,619 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5049736 Apparatus for measurement of geological age by measuring zirconium color — 1991-09-17