TREA

for providing handsfree use or a loudspeaker mode in telephone sets

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Industry

  • CPC
  • H04M1/6033
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Parent Industries

HELECTRICITY H04Electric communication H04MTELEPHONIC COMMUNICATION H04M1/00Substation equipment

Current Industry

H04M1/6033for providing handsfree use or a loudspeaker mode in telephone sets
Industries