7 Utility Patents
#79 in Gunma-ken
#121,322 in Japan
#594,344 in the World
Forward Citations = 7
Company Filing History:
Yamada Manufacturing Co., Ltd.


where one patent can have more than one assignee
Get your Inventor Badge Today
#79 in Gunma-ken
#121,322 in Japan
#594,344 in the World
Company Filing History:


Get your Inventor Badge Today