TREA

using incandescent filaments

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Industry

  • CPC
  • G09G3/08
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Parent Industries

GPHYSICS G09Cryptography, education, displays G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes

Current Industry

G09G3/08using incandescent filaments
Industries