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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47/00
Devices for handling or treating balls; , e.g. for holding or carrying balls
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A63B47/02
for picking-up; or collecting
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A63B47/025
Installations continuously collecting balls from the playing areas, e.g. by gravity, with conveyor belts
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