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Publication of FR1059403ApublicationCriticalpatent/FR1059403A/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
G04B37/00—Cases
G04B37/08—Hermetic sealing of openings, joints, passages or slits
G04B37/11—Hermetic sealing of openings, joints, passages or slits of the back cover of pocket or wrist watches
G04B37/113—Hermetic sealing of openings, joints, passages or slits of the back cover of pocket or wrist watches without special hermetic sealing pieces
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FR1059403D1952-07-021952-07-02Perfectionnement aux montres
ExpiredFR1059403A
(fr)