KW

Koichi Washimi

TE Toyo Engineering: 1 patents #103 of 295Top 35%
Overall (All Time): #4,030,642 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4435276 Method of treating heavy oil Saburo Matsumiya, Tsuneo Tanji 1984-03-06