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Keisuke Hirai
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Tokyo, JP
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Patents Grants
last 30 patents
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Patent Grant
Drainage connector
Patent number
8,677,519
Issue date
Mar 25, 2014
LIXIL Corporation
Takamasa Ina
E03 - WATER SUPPLY SEWERAGE
Patents Applications
last 30 patents
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Patent Application
FLUSH TOILET BOWL
Publication number
20150152628
Publication date
Jun 4, 2015
Lixil Corporation
Keisuke HIRAI
E03 - WATER SUPPLY SEWERAGE
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Patent Application
DRAINAGE CONNECTOR
Publication number
20100313344
Publication date
Dec 16, 2010
INAX CORPORATION
Takamasa Ina
E03 - WATER SUPPLY SEWERAGE