RY

Ryoichi Yamaoka

SI Sanshin Industries: 1 patents #190 of 319Top 60%
Overall (All Time): #3,851,793 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5118316 Exhaust system for marine propulsion unit Toshihiro Kakizaki, Satoshi Watanabe 1992-06-02