NH

Norio Hamba

NC Nippon Leakless Industry Co.: 2 patents #10 of 67Top 15%
Overall (All Time): #2,317,789 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5032430 Method of producing a metal gasket Tsunehiko Abe, Sadao Watanabe 1991-07-16
4968045 Metal gasket Tsunehiko Abe, Sadao Watanabe 1990-11-06