TREA

from a material other than glass

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Industry

  • CPC
  • G04B39/004
This industry / category may be too specific. Please go to a parent level for more data

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

G04B39/004from a material other than glass
Industries