Double-chain window opener convenient to maintain and window

The double-chain window opener convenient to maintain comprises a shell, the shell is composed of a lower box body, an upper cover plate and two end covers, the upper cover plate covers an opening in the upper portion of the lower box body, the two end covers are arranged at openings in the two ends...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	YING JUNMING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHECKS FOR WINGS DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION FIXED CONSTRUCTIONS KEYS LOCKS SAFES WINDOW OR DOOR FITTINGS WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING
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