Patent classifications
G
PHYSICS
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G04
HOROLOGY
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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
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19/00
Indicating the time by visual means
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G04B19/04
Hands; Discs with a single mark or the like
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G04B19/048
having the possibility of indicating on more than one scale, e.g. hands with variable length which work on different scales
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