Earthquake warning device

The present invention provides an earthquake warning device. The earthquake warning device comprises a guide cylinder, an alarm device, a conductive alarm pin, a suspension device, a connecting bead and a magnet; the guide cylinder includes a guide cylinder body, a first guide groove and a second gu...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	DENG QIAOHUA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALARM SYSTEMS ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!