TREA

with means for magnified reading

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Industry

  • CPC
  • G04B39/008
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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 G04B39/00Watch crystals Fastening or sealing of crystals Clock glasses

Current Industry

G04B39/008with means for magnified reading
Industries