4. Telephonic communications
  5. Supervisory or control line signaling
  6. Substation originated

Jakob Kristensen

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Exchangeable radiotelephone covers

Telecommunications – Transmitter and receiver at same station – Having particular housing or support of a transceiver
Reexamination Certificate

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Radiotelephone

Telecommunications – Transmitter and receiver at same station – Having particular housing or support of a transceiver
Reexamination Certificate

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Support structure for a keypad

Telephonic communications – Supervisory or control line signaling – Substation originated
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2605924

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