2 Utility and 1 Design Patents
#1,162 in Yamanashi 400-0862
#301,586 in Japan
rank by utility patentsForward Citations = 11
Company Filing History:

Nhk Spring Co., Ltd.
where one patent can have more than one assignee
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#1,162 in Yamanashi 400-0862
#301,586 in Japan
rank by utility patentsCompany Filing History:

Get your Inventor Badge Today