FR1206719A - Procédé et dispositif pour le réglage de la fréquence d'oscillation d'un penduleou d'un balancier par modification de la masse oscillante
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Procédé et dispositif pour le réglage de la fréquence d'oscillation d'un penduleou d'un balancier par modification de la masse oscillante
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G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
G04D7/08—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels
G04D7/082—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels for balancing
G04D7/085—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels for balancing by removing material from the balance wheel itself
G04D7/087—Automatic devices therefor (balancing and loading or removing carried out automatically)
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FR1206719D1957-05-081958-04-30Procédé et dispositif pour le réglage de la fréquence d'oscillation d'un penduleou d'un balancier par modification de la masse oscillante
ExpiredFR1206719A
(fr)