Up-down device with anti-skid function

The up-down device with the anti-skid function comprises a fixing frame and a plurality of pedals, an inclined supporting frame is arranged on the fixing frame, the inclined supporting frame comprises two inclined supporting rods and a plurality of bearing sets, the inclined supporting rods obliquel...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	MA GUOQIANG, ZHAO PEI, LI CHENGMING, MAO JIAXIANG, SHAN YIDONG, WANG HAOWEI, FAN HAICHENG, TANG BOWEI, YU HONGJIAO, ZHANG XUXIN, LI FULU, YU QIAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL FIXED CONSTRUCTIONS LADDERS
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