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Class Information
Number: 280/21.31
Name: Land vehicles >
Description:

Sub-classes under this class:

Class Number	Class Name	Patents
280/	Wheeled	0
280/1	Miscellaneous	29
280/1.5	With means for engaging body of walking attendant	58
280/28.5	Wheel substitute	31
280/29	Wheeled	19
280/3	Wheeled propelled	24
280/4	Hose and ladder	15
280/5.2	Step or abutment ascending type vehicle	61
280/5.5	Suspension modification enacted during travel (i.e., active suspension control)	151
280/6.15	Body elevation or tilt	103
280/7.1	Convertible (i.e., velocipede type)	37
280/8	Wheeled and runner	65
280/809	Ski or skate appliance or attachment	231
280/827	Simulations of the velocipede type	20
280/830	Tank or boiler	110
280/841	Skates	37
280/845	Runner vehicle	50
280/900	Runner vehicle attachments	10
280/901	Adaptation on nonspecialized vehicles to semitrailer tractors	88
280/DIG.1	Load responsive (leveling of vehicle)	170
280/DIG.10	Stair climbing chairs	71
280/DIG.11	Walking attendant steered trailers	6
280/DIG.12	Clamp-type ski bindings having plural diverse axes or clamps	1
280/DIG.13	Ski binding controlled by skier position or by remote control	6
280/DIG.14	Tractor-trailer backing connections	48
280/DIG.2	Wheel supports for outboard motors	7
280/DIG.3	Wheeled shopping bag	25
280/DIG.4	Grocery store cart	99
280/DIG.5	Motorized golf carts	189
280/DIG.6	Wheeled golf club carriers	254
280/DIG.7	Air bag rollers	10
280/DIG.8	Separable body or container-type semitrailers	22
280/DIG.9	Occupant-steered trailers	9