发明名称 RESONATORS FOR DRIVING TIMEPIECE GEAR TRAINS
摘要 A timepiece resonator comprises mechanically connected first and second oscillating crystals connected respectively in the collector-emitter and collector-base circuits of a transistor. At least the first crystal is secured to a blade adjacent to a clamping point of the blade, and a free end of the blade, carrying driving means for cooperation with a pinion, oscillates at a sub-harmonic of the resonant frequency of the crystals.
申请公布号 US3668442(A) 申请公布日期 1972.06.06
申请号 USD3668442 申请日期 1971.04.26
申请人 ERWIN BERNHEIM 发明人 GERHARD VOSSELER
分类号 G04C3/12;G04F5/08;(IPC1-7):H01V7/00 主分类号 G04C3/12
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