11 Utility Patents
#447 in Matsumoto
#77,051 in Japan
#363,721 in the World
Forward Citations = 25
Company Filing History:

Duplo Seiko Corporation
where one patent can have more than one assignee
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#447 in Matsumoto
#77,051 in Japan
#363,721 in the World
Company Filing History:

Get your Inventor Badge Today