6 Utility Patents
#509 in Hiratsuka
#139,408 in Japan
#694,683 in the World
Forward Citations = 4
Company Filing History:
Tanaka Kikinzoku Kogyo K.k.

where one patent can have more than one assignee
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#509 in Hiratsuka
#139,408 in Japan
#694,683 in the World
Company Filing History:

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