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Yoshinori Awanohara
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Nagano-ken, JP
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Patents Grants
last 30 patents
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Patent Grant
O-ring test device
Patent number
6,389,907
Issue date
May 21, 2002
Seiko Epson Corporation
Yo Shishihara
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Patents Applications
last 30 patents
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Patent Application
O-ring test device
Publication number
20020002867
Publication date
Jan 10, 2002
Yo Shishihara
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE