| 摘要 |
518,825. Alloys. BRITISH SANGAMO CO., Ltd. Aug. 30, 1938, No. 25408. Convention date. Oct. 9, 1937. Drawings to Specification. [Class 82 (i)] [Also in Groups XXII and XXXV] A permanent magnet may be made of an alloy comprising 12 per cent. aluminium, 18 per cent. nickel and 70 per cent. iron. |
