| 摘要 |
894,165. Making flexible shafts. SCHMID, R., and WEZEL, W., [trading as SCHMID & WEZEL]. July 25, 1960 [July 25, 1959], No. 25751/60. Class 83 (2). [Also in Group XXIV] A flexible shaft is made by winding one or more layers of wire 4 ... 7 upon a core 1 of non-metallic material such as synthetic resin or paper. The core 1 may then be shrunken by heat and withdrawn from the shaft, or alternatively destroyed by chemical means. |
