JPS6159456B

A smoke detector includes a light-emitting circuit, a light-receiving circuit, a smoke detecting space between the light-emitting and receiving circuits, and an amplifier circuit connected to the light-receiving circuit amplifying the output of the light-receiving circuit at an output terminal. An o...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YAMAUCHI YUKIO, PPONMA HIROSHI
Format:	Patent
Sprache:	eng
Schlagworte:	ALARM SYSTEMS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS TESTING
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