AH

Akira Harayama

TC Teikoku Piston Ring Co.: 1 patents #7 of 13Top 55%
Overall (1994): #160,127 of 165,921Top 100%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5295696 Combined oil ring Kazuyoshi Aruga 1994-03-22