TREA

involving control of the receiver volume to provide a dual operational mode at close or far distance from the user

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Industry

  • CPC
  • H04M1/605
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Parent Industries

HELECTRICITY H04Electric communication H04MTELEPHONIC COMMUNICATION H04M1/00Substation equipment

Current Industry

H04M1/605involving control of the receiver volume to provide a dual operational mode at close or far distance from the user
Industries