Power operated attachments for overhead lifting apparatus, namely, overhead lifting beams with associated object leveling systems comprised of lifting bails movable lengthwise along the overhead lifting beams, all the foregoing power operated and for use with heavy duty material handling, and all excluding dock systems for installation at loading docks

'along':23 'apparatus':7 'associ':13 'attach':3 'bail':20 'beam':11,27 'compris':17 'dock':44,50 'duti':38 'exclud':43 'forego':30 'handl':40 'heavi':37 'instal':47 'lengthwis':22 'level':15 'lift':6,10,19,26 'load':49 'materi':39 'movabl':21 'name':8 'object':14 'oper':2,32 'overhead':5,9,25 'power':1,31 'system':16,45 'use':35

LEVEL-RITE

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