Improvements in or relating to subscribers line circuits for use in telephone systems

811,994. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Oct. 27, 1955 [Nov. 30, 1954], No. 34604/54. Class40 (4). A subscriber's line circuit, having a resistor over which the calling subscriber's loop develops a calling potential, comprises a transistor responsive...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SANFORD TERENCE MARTIN MCCLELLAND, ALLEN LESLIE JOHN
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY SELECTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!