Izumi Kurata

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Automatic focusing apparatus in optical drawing machine
- Patent number 4,512,642
- Issue date Apr 23, 1985
- Ashai Kogaku Kogyo Kabushiki Kaisha
- Tokuhisa Ito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY