28 Utility Patents
#4,493 in Tokyo
#21,623 in Japan
#100,097 in the World
Forward Citations = 125
Company Filing History:


Sanwa Needle Bearing Co., Ltd.
where one patent can have more than one assignee
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#4,493 in Tokyo
#21,623 in Japan
#100,097 in the World
Company Filing History:


Get your Inventor Badge Today