4. Telephonic communications
  5. Audio message storage, retrieval, or synthesis
  6. Dynamic audio signal recording or reproduction

Bernard N. Lipscher

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Computer security system

Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
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Door message apparatus with telephone answering device

Telephonic communications – Audio message storage – retrieval – or synthesis – Dynamic audio signal recording or reproduction
Patent

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Profile ID: LFUS-PAI-P-1022999

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