Book collecting and arranging device of library

The utility model discloses a book collecting and arranging device of library, including the device main part, the centre of device main part is equipped with quick -witted case, the both sides of machine incasement portion are equipped with the spring, the centre of machine incasement portion is eq...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	DUAN MENGYAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	HAULING HOISTING HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD LIFTING PERFORMING OPERATIONS TRANSPORTING
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