Keiichiro Hirao

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of producing molded resin article
- Patent number 5,030,408
- Issue date Jul 9, 1991
- Japan Steel Works Ltd
- Keiichiro Hirao
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL