| 摘要 |
1,272,430. Hand-applied drills; grinding. ROBERT BOSCH G.m.b.H. 23 July, 1969 [22 Aug., 1968], No. 36916/69. Headings B3C and B3D. A hand-applied drilling or like rotary tool incorporating a driving motor comprises a housing 12 or 22, a handle 11 or 21 extending rearwardly therefrom and a hand guard 13 or 23 having its major portion extending substantially parallel with the longitudinal axis of the housing and connecting one part of the housing to the rear end of the handle. |
