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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23/00
Exercising apparatus specially adapted for particular parts of the body
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A63B23/035
for limbs, i.e. upper or lower limbs, e.g. simultaneously
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A63B23/0405
involving a bending of the knee and hip joints simultaneously
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A63B23/0464
Walk exercisers without moving parts
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