TREA

Optical projection devices wherein the contrast is controlled optically (

Follow

Industry

  • CPC
  • G03B27/727
This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

GPHYSICS G03Photography G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES ACCESSORIES THEREFOR G03B27/00Photographic printing apparatus

Current Industry

G03B27/727Optical projection devices wherein the contrast is controlled optically (
Industries