Method and apparatus for teaching a user how to hit a ball...
Method and apparatus for teaching and improving manual dexterity
Method and apparatus for temporarily marking a point of contact
Method and apparatus for temporarily marking a point of contact
Method and apparatus for tournament play of coin operated games
Method and apparatus for training a user to swing a golf club
Method and apparatus for training athletes
Method and apparatus for uniquely identifying a golf ball at...
Method and apparatus to determine golf ball trajectory and...
Method and apparatus to determine golf ball trajectory and...
Method and apparatus to determine golf ball trajectory and...
Method and apparatus to determine golf ball trajectory and...
Method and apparatus to determine golf ball trajectory and...
Method and apparatus to determine object striking instrument mov
Method and apparatus to determine object striking instrument mov
Method and apparatus to practice golf swing
Method and arrangement for applying and securing edges of improv
Method and device for developing accurate aim
Method and device for playing golf
Method and device implementing a custom fit putter