Adjustable golf putting practice device
Adjustable putting green for golf practice
Adjustable putting green for golf practice
Adjustable slope and contour practice putting green assembly...
Angularly adjustable putting practice apparatus
Apparatus and method for practicing golf ball putting
Apparatus and method for returning a golf ball to a desired...
Apparatus for measuring parameters relating to the...
Artificial putting system
Athletic ball impact measurement and display device
Automated practice putting green with oversurface ball return
Automatically-scoring mini-golf game