| 摘要 |
970,996. Electric watches. COMPAGNIE DES MONTRES LONGINES FRANCILLON S.A. April 17,1961 [April 20, 1960], No. 13707/61. Heading G3T. In an electric watch the balance 10 is mechanically impulsed by a member 27 which carries a periodically energized winding 30 and which rocks between permanent magnet polepieces 19. A piece 30 of magnetic material 37 carried by the member 27 co-operates with the polepieces 19 to bias the member 27 in its direction of movement towards one or other of the abutments 38, 39. Specification 970,995 is referred to.
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