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Priority to NL6512536ApriorityCriticalpatent/NL6512536A/xx
Publication of NL6512536ApublicationCriticalpatent/NL6512536A/xx
A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
A63B21/06—User-manipulated weights
A63B21/0601—Special physical structures of used masses
A63B21/0603—Fluid-like particles, e.g. gun shot or sand
A—HUMAN NECESSITIES
A63—SPORTS; GAMES; AMUSEMENTS
A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
A63B21/06—User-manipulated weights
A63B21/072—Dumb-bells, bar-bells or the like, e.g. weight discs having an integral peripheral handle
