TREA

using a light-emitting and receiving device

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Industry

  • CPC
  • G08B17/103
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Parent Industries

GPHYSICS G08Signaling G08BSIGNALLING OR CALLING SYSTEMS ORDER TELEGRAPHS ALARM SYSTEMS G08B17/00Fire alarms Alarms responsive to explosion

Current Industry

G08B17/103using a light-emitting and receiving device
Industries