Doorbell chime

A doorbell system comprises a doorbell chime (18), a first doorbell push (10) for sending a first input signal to the doorbell chime (18) in response to the first doorbell push (10) being activated, and a second device, such as a second doorbell push (14), for sending a second input signal to the do...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Iphin Rangson, Felix Haeffner, Dominic Hargreaves, Christopher Parker
Format:	Patent
Sprache:	eng
Schlagworte:	ALARM SYSTEMS ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS
Online-Zugang:	Volltext bestellen
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