TREA

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  • CPC
  • G04B19/241
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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

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G04B19/241the date is indicated by one or more hands
Industries