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Priority to DD17745674ApriorityCriticalpatent/DD117961A3/xx
Publication of DD117961A3publicationCriticalpatent/DD117961A3/xx
B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
B62B5/00—Accessories or details specially adapted for hand carts
B62B5/02—Accessories or details specially adapted for hand carts providing for travelling up or down a flight of stairs
B62B5/023—Accessories or details specially adapted for hand carts providing for travelling up or down a flight of stairs using an upwards pushing device