TREA

using electric transmission using electromagnetic transmission

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Industry

  • CPC
  • G08B3/10
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Parent Industries

GPHYSICS G08Signaling G08BSIGNALLING OR CALLING SYSTEMS ORDER TELEGRAPHS ALARM SYSTEMS G08B3/00Audible signalling systems Audible personal calling systems

Current Industry

G08B3/10using electric transmission using electromagnetic transmission
Industries