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Class Information
Number: 212/267
Name: Traversing hoists >
Description:


Sub-classes under this class:

Class Number Class Name Patents
212/166 Closure remover 40
212/167 With haul-in line 18
212/168 With means to project load engager beyond end of boom 22
212/169 Ground wheel operated 0
212/170 Having clutch or variable speed transmission 3
212/175 Having means facilitating assembly or disassembly 72
212/195 Having counterweight or counterbalancing means 108
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 120
212/271 Miscellaneous 45
212/272 Having means to prevent or dampen load oscillations 46
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 31
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) 56
212/312 Traveling bridge 75
212/347 Boom or mast 91
212/71 Overhead 26
212/901 Dolley-type cranes 64


Patents under this class:

Patent Number Title Of Patent Date Issued



 
 
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