Koichi Okita

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Osaka, JA

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Patents Grantslast 30 patents

Information Patent Grant
Porous polytetrafluoroethylene tubings and process of producing them
- Patent number 4,082,893
- Issue date Apr 4, 1978
- Sumitomo Electric Industries, Ltd.
- Koichi Okita
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL