| 摘要 |
512,624. Alloys. BROWNBANK, H. L. March 8, 1938, No. 7213. [Class 82 (i)] [Also in Group XXII] Bearing shells are lined with an alloy of copper containing 20-45 per cent. of lead and also, if desired, 1-12 per cent. of tin with or without some nickel. |
