TREA

the front + component being compound

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Industry

  • CPC
  • G02B9/54
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Parent Industries

GPHYSICS G02Optics G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS G02B9/00Optical objectives characterised both by the number of the components and their arrangements according to their sign

Current Industry

G02B9/54the front + component being compound
Industries