8 Utility Patents
#169 in Takasaki
#107,464 in Japan
#521,770 in the World
Forward Citations = 159
Company Filing History:

Tokyo Optical Company, Ltd.
where one patent can have more than one assignee
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#169 in Takasaki
#107,464 in Japan
#521,770 in the World
Company Filing History:

Get your Inventor Badge Today