TREA

by generating or selecting other signals than trains of pulses of similar shape or other signals than currents of one or more different frequencies

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Industry

  • CPC
  • H04M1/515
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Parent Industries

HELECTRICITY H04Electric communication H04MTELEPHONIC COMMUNICATION H04M1/00Substation equipment

Current Industry

H04M1/515by generating or selecting other signals than trains of pulses of similar shape or other signals than currents of one or more different frequencies
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