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Classifications

G04C3/101 Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details
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CS173575B2

Czechoslovakia


Worldwide applications
1969 CH CH 1970 GB US NL JP CS FR 1972 SU

Application CS7668A events
1970-11-13
Application filed