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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
G04B19/00—Indicating the time by visual means
G04B19/06—Dials
G04B19/16—Shiftable dials, e.g. indicating alternately from 1 to 12 and from 13 to 24
G04B19/163—Shiftable dials, e.g. indicating alternately from 1 to 12 and from 13 to 24 numbers which are visible alternately from 1 to 12 and from 13 to 24 on the same dial G04B19/085
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FR457683D1913-05-091913-05-09Perfectionnements aux pendules et horloges électriques ou pneumatiques à système horaire de 24 heures
ExpiredFR457683A
(fr)