Tadayoshi Ishii

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Hannou, JP

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Patents Grantslast 30 patents

Information Patent Grant
Tripod rack and pinion focussing mechanism rotatable relative to lens
- Patent number 4,187,020
- Issue date Feb 5, 1980
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Tadayoshi Ishii
- G02 - OPTICS