4. Telephonic communications
  5. Telephone line or system combined with diverse electrical...
  6. Having transmission of a digital message signal over a...

Didier Gayrard

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Modem including a device for detecting the busy state of a...

Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
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Process, arrangement, devices for seizure of a shared...

Telephonic communications – Multi-line or key substation system with selective switching... – With exclusion or priority feature
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2035728

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