TREA

having a focussing action

Follow

Industry

  • CPC
  • G02B23/06
This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

GPHYSICS G02Optics G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS G02B23/00Telescopes

Current Industry

G02B23/06having a focussing action
Industries