6 Utility Patents
#2,487 in Saitama 343-0827
#139,205 in Japan
#691,801 in the World
Forward Citations = 2
Company Filing History:
Mitsui Mining & Smelting Company, Ltd.

where one patent can have more than one assignee
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#2,487 in Saitama 343-0827
#139,205 in Japan
#691,801 in the World
Company Filing History:

Get your Inventor Badge Today