14 Utility Patents
#213 in Itami
#57,656 in Japan
#267,690 in the World
Forward Citations = 4
Company Filing History:

Sumitomo Electric Hardmetal Corp.
where one patent can have more than one assignee
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#213 in Itami
#57,656 in Japan
#267,690 in the World
Company Filing History:

Get your Inventor Badge Today