Patent classifications
A
HUMAN NECESSITIES
Load children
A63
SPORTS; GAMES; AMUSEMENTS
Load children
A63B
APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
Load children
69/00
Training appliances or apparatus for special sports
Load children Filter patents View analytics View as hierarchy
A63B69/0073
Means for releasably holding a ball in position; Balls constrained to move around a fixed point, e.g. by tethering
Load children Filter patents View analytics View as hierarchy
A63B69/0079
Balls tethered to a line or cord
Load children Filter patents View analytics View as hierarchy
A63B69/0084
the line or cord being fixed to at least two points
Filter patents View analytics View as hierarchy