TREA

Bifocal lenses Multifocal lenses

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Industry

  • CPC
  • G02B3/10
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Parent Industries

GPHYSICS G02Optics G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS G02B3/00Simple or compound lenses

Current Industry

G02B3/10Bifocal lenses Multifocal lenses
Industries