4. Telephonic communications
  5. Supervisory or control line signaling
  6. Signal reception at substation

Nobell Inc.

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Personalized telephone signaling circuitry and device, and metho

Telephonic communications – Supervisory or control line signaling – Signal reception at substation
Patent

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Remote telephone signaling circuitry and device

Telephonic communications – Supervisory or control line signaling – Signal reception at substation
Patent

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Skateboard telephone or similar article

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

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Telephone or similar article

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

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