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CIE IND DE MECANIQUE HORLOGERE
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CIE IND DE MECANIQUE HORLOGERE
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Application filed by CIE IND DE MECANIQUE HORLOGEREfiledCriticalCIE IND DE MECANIQUE HORLOGERE
Application grantedgrantedCritical
Publication of FR993280ApublicationCriticalpatent/FR993280A/fr
G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
G04D7/1207—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring
G04D7/1235—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring for the control mechanism only (found from outside the clockwork)
G04D7/125—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring for the control mechanism only (found from outside the clockwork) for measuring frequency
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Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR993280D1949-06-161949-06-16Procédé et dispositif de réglage de la fréquence d'oscillation des balanciers de mécanismes d'horlogerie
ExpiredFR993280A
(fr)
Procédé et dispositif d'entretien du mouvement d'un balancier élastique par le moyen d'impulsions électro-magnétiques agissant sur un oscillator