| 摘要 |
1,206,704. Shaver foils. BALCO FILTERTECHNIK G.m.b.H. 15 Nov., 1968 [18 Nov., 19671, No. 54266/68. Heading B4B. A shearing foil 1 for a dry shaver includes openings 2 for hairs, the openings 2 being bounded by arc-segments 10 whose radii lie outside the corresponding opening 2. The openings may be e.g. generally square, hexagonal or dodecagonal, and their corners are formed by further short arcuate segments, Fig. 2 (not shown), whose radii also lie outside the openings 2. |
