4. Telephonic communications
  5. Terminal accessory or auxiliary equipment
  6. Attachable to terminal housing

Erling C. Hesla

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Extension attachment for a telephone earpiece

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Element or attachment
Patent

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Extension attachment for a telephone earpiece

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Element or attachment
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Telephone earpiece extension attachment

Telephonic communications – Terminal accessory or auxiliary equipment – Attachable to terminal housing
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

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Profile ID: LFUS-PAI-P-338207

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