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Hiro; Takumitsu
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Yokohama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Prototype of mouth piece
Patent number
5,666,974
Issue date
Sep 16, 1997
Okamoto Industries, Inc.
Takumitsu Hiro
A63 - SPORTS GAMES AMUSEMENTS
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last 30 patents
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