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Takuo Aida
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Tokyo, JP
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Patents Grants
last 30 patents
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Patent Grant
Gas suction pump device, gas feed adapter and gas alarm unit
Patent number
6,712,586
Issue date
Mar 30, 2004
Riken Keiki Co., Ltd.
Junichi Koyano
G08 - SIGNALLING
Patents Applications
last 30 patents
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Patent Application
Gas suction pump device, gas feed adapter and gas alarm unit
Publication number
20030138329
Publication date
Jul 24, 2003
Riken Keiki Co., Ltd.
Junichi Koyano
G08 - SIGNALLING