Patent classifications
A
HUMAN NECESSITIES
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A63
SPORTS; GAMES; AMUSEMENTS
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A63B
APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
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22/00
Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
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A63B22/04
with movable; multiple; steps; , i.e. more than one step per limb, e.g. steps mounted on endless loops, endless ladders
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