HT

Hachiro Tanaka

TC Teikoku Piston Ring Co.: 1 patents #41 of 95Top 45%
Overall (All Time): #3,658,753 of 4,157,543Top 90%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5945226 Chromium alloy plating film, plating method thereof and member covered with said film Akira Harayama 1999-08-31