Jean-Pierre Coulmance

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Adjustable integrated/discrete-element line current controller i

Telephonic communications – Subscriber line or transmission line interface – Network interface device
Patent

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Arrangement for opening the loop for a well-defined time interva

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Interface for a telephone set

Telephonic communications – Substation or terminal circuitry – Impedance matching or line equalizing
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Loudspeaking telephone set having an anti-Larsen device for inst

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal
Patent

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Profile ID: LFUS-PAI-P-1150927

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