TREA

of direct vision type

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Industry

  • CPC
  • G03B13/04
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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 G03B13/00Viewfinders Focusing aids for cameras Means for focusing for cameras Autofocus systems for cameras

Current Industry

G03B13/04of direct vision type
Industries