TREA

Diffractive and Fresnel lenses or lens portions

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Industry

  • CPC
  • G02C2202/20
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Parent Industries

GPHYSICS G02Optics G02CSPECTACLES SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES CONTACT LENSES G02C2202/00Generic optical aspects applicable to one or more of the subgroups of G02C7/00

Current Industry

G02C2202/20Diffractive and Fresnel lenses or lens portions
Industries