Independent date indicating devices activated by hand or by clockwork

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Industry

CPC
G04B19/24353

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Parent Industries

GPHYSICS G04Horology G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS G04B19/00Indicating the time by visual means

Current Industry

G04B19/24353Independent date indicating devices activated by hand or by clockwork

Industries

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