Machine for conditioning the human body
Machine for exercising the muscles of the lower back and...
Machine-assisted exercising
Magic belt
Magnet-controlled rowing exerciser
Magnetic golf ball collecting device
Magnetic projectile
Magnetic retention of hockey goals
Mait-ball
Manhole infiltration disk and seal assembly
Manipulative device for competitive play
Manual dexterity percussion game
Manufacture of moulded fiber reinforced resin racket with...
Map spot projection system for a golf game
Marker - golf ball location
Marker suitable as a golf fairway marker
Marker suitable as a golf fairway marker
Martial arts equipment device
Martial arts physical interaction device and method
Martial arts practice apparatus