KA

Keiichi Akiyama

Overall (1982): #49,295 of 81,411Top 65%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4330336 Method of producing low-line aluminous cement from aluminum smelting residue 1982-05-18