Swing type athletic equipment and practice apparatus therefor
Swing weight adjustment assembly and method
Swing weight apparatus for attachment to a golf club head
Swing-practicing device for golf
Swinging implement
Swingweight adjusted golf club shaft
Swivel clamp for racket stringing
Swivel or rotating golf club head
Synthetic golfing tee and method of manufacturing same
Synthetic leather covered game ball
System and apparatus for supporting a sports ball net
System and apparatus for supporting a sports ball net
System and device for golf putting practice
System and facility for educating students concerning the...
System and method for basketball goal height adjustment
System and method for collecting and managing data
System and method for correcting golf swing using internet
System and method for measuring a golfer's ball...
System and method for measuring a golfer's ball...
System and method for quick release base for baseball and...