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Home › Unknown › Kinsaku Yamashita
KY

Kinsaku Yamashita

UNUnknown: 2 patents #12,644 of 83,584Top 20%
Overall (All Time): #2,300,672 of 4,157,543Top 60%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5260763 Instrument for observing jewels' brilliance as diamond, and method of taking photographs with said instrument — 1993-11-09
5196966 Method and implement for observing or photographing gem such as diamond — 1993-03-23

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