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Publication of DD101883A1publicationCriticalpatent/DD101883A1/xx
B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
B66F9/07—Floor-to-roof stacking devices, e.g. "stacker cranes", "retrievers"