4. Telecommunications
  5. Radiotelephone system
  6. Auxiliary data signaling

Kevin Colwell

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Alphanumeric paging entry system

Telecommunications – Transmitter and receiver at separate stations
Patent

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Captioned telephone with emergency access feature

Telephonic communications – Including aid for handicapped user
Reexamination Certificate

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Gateway for low cost alphanumeric paging entry system

Telecommunications – Radiotelephone system – Auxiliary data signaling
Patent

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Personal interpreter

Telephonic communications – Including aid for handicapped user
Patent

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Public terminal receptacle

Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Patent

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Profile ID: LFUS-PAI-P-221140

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