2 Utility Patents
#3,378 in Kobe
#304,340 in Japan
Forward Citations = 6
Company Filing History:

Kabushiki Kaisha Kobe Seiko Sho
Showa Shell Sekiyu K.k.
where one patent can have more than one assignee
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#3,378 in Kobe
#304,340 in Japan
Company Filing History:

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