Security monitoring device for primary and secondary schools

The security and protection monitoring device comprises a camera and a supporting rod, the bottom of the supporting rod is provided with a chassis, the top of the supporting rod is provided with a rotatable supporting plate, the camera is detachably installed on the supporting plate, and the side fa...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG YINGYING, MENG DONGQING, SUN LIJIE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS FRAMES, CASINGS, OR BEDS OF ENGINES OR OTHER MACHINES ORAPPARATUS NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUSPROVIDED FOR ELSEWHERE GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING STANDS OR SUPPORTS THERMAL INSULATION IN GENERAL WEAPONS
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