TREA

Means for recording operation of the apparatus

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Industry

  • CPC
  • G08B9/04
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Parent Industries

GPHYSICS G08Signaling G08BSIGNALLING OR CALLING SYSTEMS ORDER TELEGRAPHS ALARM SYSTEMS G08B9/00Order telegraph apparatus, i.e. means for transmitting one of a finite number of different orders at the discretion of the user

Current Industry

G08B9/04Means for recording operation of the apparatus
Industries