KA

Kazuyoshi Aruga

TC Teikoku Piston Ring Co.: 1 patents #7 of 13Top 55%
Overall (1994): #109,599 of 165,921Top 70%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5295696 Combined oil ring Akira Harayama 1994-03-22