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CUNO MAERZ
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CUNO MAERZ
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Publication of FR422068ApublicationCriticalpatent/FR422068A/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
G04B19/00—Indicating the time by visual means
G04B19/30—Illumination of dials or hands
G04B19/32—Illumination of dials or hands by luminescent substances
Landscapes
Physics & Mathematics
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General Physics & Mathematics
(AREA)
FR422068D1910-11-031910-11-03Dispositif pour l'éclairage temporaire des cadrans et des échelles graduées dans les appareils mesureurs de tout genre
ExpiredFR422068A
(fr)