TREA

by interruption of a radiation beam or barrier

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Industry

  • CPC
  • G08B13/183
This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

GPHYSICS G08Signaling G08BSIGNALLING OR CALLING SYSTEMS ORDER TELEGRAPHS ALARM SYSTEMS G08B13/00Burglar, theft, or intruder alarms

Current Industry

G08B13/183by interruption of a radiation beam or barrier
Industries