E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
E05F13/00—Mechanisms operated by the movement or weight of a person or vehicle
E05F13/04—Mechanisms operated by the movement or weight of a person or vehicle by platforms lowered by the weight of the user
Landscapes
Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation
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Financial Or Insurance-Related Operations Such As Payment And Settlement
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Diaphragms For Electromechanical Transducers
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