TREA

Amplifier switched-on automatically in dependence on automatically-selected lines

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Industry

  • CPC
  • H04Q1/54
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Parent Industries

HELECTRICITY H04Electric communication H04QSELECTING H04Q1/00Details of selecting apparatus or arrangements for establishing connections among stations for the purpose of transferring information via these connections

Current Industry

H04Q1/54Amplifier switched-on automatically in dependence on automatically-selected lines
Industries