Suspension type safety extension ladder

The utility model discloses a suspension type safety extension ladder, including that fixed knot constructs and extending structure, being connected with extending structure on fixed knot constructs,extending structure's top is connected with the workstation, and extending structure is includin...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHU YUN, LIU SUPING, HE YONGLIANG, LIU NAN, REN JIKUN, LIU ZHEZHE, ZHOU YAMING, CAO QINGZE, TIAN BAO, ZHANG RONGHUI, LI XIAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL FIXED CONSTRUCTIONS LADDERS
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