Device for arm wrestling
Device for automatically evaluating the ball throwing efficiency
Device for batting and striking practice
Device for batting and striking practice
Device for carrying the grab in slot machine cabinets
Device for catching a ball
Device for catching and throwing an aerodynamic disc
Device for facilitating application of variable tension to sport
Device for holding chalk for application to tips of pool cues
Device for instruction in the game of bridge and method of and d
Device for intercepting and deflecting a moving body
Device for locating the position of impact of a projectile
Device for measuring swing data of baseball bat
Device for preventing tennis elbow
Device for producing a block-built picture
Device for reducing vibrations of a tennis racquet
Device for setting a golf tee
Device for simulating breaking football tackles
Device for supporting a ball container from a tennis racket
Device for teaching batting techniques