Height-adjustable movable elevator maintenance warning sign device

The invention discloses a height-adjustable movable elevator maintenance warning sign device which comprises a device body, a base, rollers, a connecting shaft, a hydraulic lifting column and a warning sign. The base is arranged on the device body, the lower side face of the base is fixedly connecte...

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Bibliographische Detailangaben
1. Verfasser:	DENG KELUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADVERTISING CRYPTOGRAPHY DISPLAY DISPLAYING EDUCATION LABELS OR NAME-PLATES PHYSICS SEALS SIGNS
Online-Zugang:	Volltext bestellen
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