Multifunctional fire-fighting building alarm device

The utility model relates to the technical field of fire-fighting alarm devices, and discloses a multifunctional fire-fighting building alarm device which comprises a wall body and a positioning block installed on the surface of the wall body, positioning bolts connected with the wall body are arran...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	JIE LIUHONG, JIE KEJI, SUN ZHENYOU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALARM SYSTEMS ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS
Online-Zugang:	Volltext bestellen
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