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For the Inventor, By the Inventor

Gumna, Japan

Tokyo Sanyo Denki Kabushiki Kaisha


USPTO Granted Patents = 1

Forward Citations = 6

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1 inventor (with patents filed for the assignee):

goldMedal Hiroshi Kato (1 out of 9 patents)


1 patent:

1. 4138918 - Automatic musical instrument (1979-02-13),
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USPTO Data Jan 1 1976 - Dec 16 2025

1 Patents

#1 in Gumna

#15,539 in Japan

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Gumna, Japan

Tokyo Sanyo Denki Kabushiki Kaisha

Forward Citations = 6

1 inventor:

goldMedal Hiroshi Kato (1 out of 9 patents)

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