18 Utility Patents
#2,741 in Yokohama
#41,662 in Japan
#192,702 in the World
Forward Citations = 370
Company Filing History:
Ohi Seisakusho Co., Ltd.
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4. 1 out of 806
Mitsui Mining & Smelting Company, Ltd.
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#2,741 in Yokohama
#41,662 in Japan
#192,702 in the World
Company Filing History:

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