| 摘要 |
510,640. Alloys. BAKER & CO., INC. July 30, 1938, No. 22749. Convention date, Jan. 29. [Class 82 (i)] An alloy suitable for jewellery, pen-nibs, electric contacts, resistance wires, spinnerets and dental appliances consists of ruthenium, copper and at least 50 per cent. of palladium. The alloy preferably contains 80-98 per cent. of palladium with equal amounts of ruthenium and copper, or the content of latter may be 0.5-15 per cent. |
