Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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VIROLA SA
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VIROLA SA
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Publication date
Application filed by VIROLA SAfiledCriticalVIROLA SA
Priority to FR56645ApriorityCriticalpatent/FR1475164A/fr
Application grantedgrantedCritical
Publication of FR1475164ApublicationCriticalpatent/FR1475164A/fr
G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
G04B17/00—Mechanisms for stabilising frequency
G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
G04B17/34—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring onto the balance
G04B17/345—Details of the spiral roll
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Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR56645A1966-04-061966-04-06Dispositif de fixation d'un spiral d'horlogerie à l'axe de balancier et procédé de fabrication de ce dispositif
ExpiredFR1475164A
(fr)
Procédé de fabrication d'une unité constituée par un spiral d'horlogerie et une virole et dispositif pour la fixation de cette unité sur le balancier
Procédé de fixation de l'extrémité intérieure d'un spiral à un balancier d'horlogerie et dispositif de fixation de l'extrémité intérieure d'un spiral obtenu par ce procédé