| 摘要 |
<p>677,343. Powder metallurgy. MORGAN CRUCIBLE CO., Ltd. Aug. 25, 1950 [Aug. 25, 1949], No. 22144/49. Class 83 (iv). [Also in Group XXXIV] A cylindrical bearing lining 4 of sintered self-lubricating metal for a jockey pulley is fitted in a substantially cubical light metal casting or plastic moulding 1. The sintered metal may be formed as described in Specification 617,809.</p> |
