constructed to operate at successively higher levels

Full Title

Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes > specially adapted for use in particular locations or for particular purposes > for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail > constructed to operate at successively higher levels

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

HOISTING; LIFTING; HAULING

Subclass:

CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES

Child Classifications

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• B66C 23/3 with frameworks composed of telescopic elements
• B66C 23/32 Self-hoisting cranes