| 摘要 |
PCT No. PCT/EP86/00640 Sec. 371 Date Jul. 27, 1987 Sec. 102(e) Date Jul. 27, 1987 PCT Filed Nov. 7, 1986 PCT Pub. No. WO87/03417 PCT Pub. Date Jun. 4, 1987.A winding (12) is wound around a core (10) having a circular cross-section. The wound core (10) is then deformed by pressure between flat surfaces (14, 16) until a flat contact surface is created which allows the use of sliding brushes, for example. |
