69021 ⎘
Accessories or details specially adapted for children's carriages or perambulators providing for travelling up or down a flight of stairs
Sub-classes:IDENTIFYING STAIRS FROM FOOTFALLS
#2Wheel with movable elements
#3Maneuverable strollers
#4Transportation device and stabilizer for same
#5WHEEL-STAGGERED STAIRWAY-CLIMBING VECHICLE
#6Step-climbing attachment for a wheeled chair
#7Stroller Track System
#8Stroller track system
#9SYSTEM ASSISTING THE MOVEMENT ON STEEP SURFACES
#10Infant stroller apparatus
#11Infant stroller apparatus
#12Stair climbing vehicle
#13Manually Propelled Vehicle with Continuous Track
#14Wheel mechanism
#15Wheel mechanism
#16Adaptor to attach conveyance device to wheel
#17Household and shopping laundry cart
#18Curb mounting maneuverable stroller
#19Stair-climbing stroller