Masahiro Arai

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Gyoda, JP

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Patents Grantslast 30 patents

Information Patent Grant
Carbon fiber reinforced resin coil spring
- Patent number 5,685,525
- Issue date Nov 11, 1997
- Toho Rayon Co., Ltd.
- Takeshi Oguri
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL