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Class Information
Number: 212/56
Name: Traversing hoists >
Description:

Sub-classes under this class:

Class Number	Class Name	Patents
212/166	Closure remover	38
212/167	With haul-in line	18
212/168	With means to project load engager beyond end of boom	21
212/169	Ground wheel operated	0
212/170	Having clutch or variable speed transmission	3
212/175	Having means facilitating assembly or disassembly	69
212/195	Having counterweight or counterbalancing means	105
212/199	Having boom shiftable vertically along a linear path	14
212/223	Having horizontally swinging boom or bridge	28
212/255	Having vertically swinging boom	27
212/270	Methods	114
212/271	Miscellaneous	43
212/272	Having means to prevent or dampen load oscillations	45
212/276	Having random condition sensor combined with an indicator or alarm or controlling means or disabling means	98
212/282	With mechanical indicator	19
212/284	With motor control	30
212/291	Having operator support or cab	43
212/292	Boom position lock	74
212/293	Having snubber or boom backswing stop	13
212/294	Adjustable to transport or nonuse position (e.g., collapsible)	80
212/307	Ship mounted or floating (e.g., a crane fixed to a platform adapted to float)	55
212/312	Traveling bridge	65
212/347	Boom or mast	89
212/71	Overhead	24
212/901	Dolley-type cranes	62