Hayami Yuasa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Environmental abnormality alarm apparatus
- Patent number 4,924,417
- Issue date May 8, 1990
- Nittan Co., Ltd.
- Hayami Yuasa
- G08 - SIGNALLING
Information Patent Grant
Smoke detector
- Patent number 4,524,351
- Issue date Jun 18, 1985
- Nittan Company, Limited
- Tetsuo Kimura
- G08 - SIGNALLING