| 摘要 |
1,232,917. Grinding; drilling machine details. CITROEN S.A. 20 March, 1969 [26 March, 1968], No. 14618/69. Heading B3D. [Also in Division G3] The disclosure is substantially identical, with that of Specification 1,232,916, but the claims relate to the means for controlling the axial movement of the expanding rod. |
