9 Utility Patents
#17,851 in Tokyo
#95,574 in Japan
#458,312 in the World
Forward Citations = 2
Company Filing History:


Nhk Spring Co., Ltd.
4. 1 out of 1,248

where one patent can have more than one assignee
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#17,851 in Tokyo
#95,574 in Japan
#458,312 in the World
Company Filing History:



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