Yutaka Kawaguchi

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Fukushima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of detecting breakage of glass fiber filament
- Patent number 4,130,406
- Issue date Dec 19, 1978
- Nitto Boseki Co., Ltd.
- Isao Wakasa
- C03 - GLASS MINERAL OR SLAG WOOL