mechanical apparatus for measuring athletic performance, namely, apparatus for measuring force, strength, length, rate, velocity, and acceleration of horizontal and vertical leg movements, and structural parts therefor; straps and carrying cases specially adapted for carrying mechanical apparatus for measuring athletic performance, namely, apparatus for measuring force, strength, length, rate, velocity, and acceleration of horizontal and vertical leg movements; electronic devices for measuring athletic performance, namely, devices for measuring, collecting, and analyzing metrics of force, strength, length, rate, velocity, and acceleration of horizontal and vertical leg movements, and electronic battery chargers therefor; computer hardware devices for sensing and measuring athletic performance, namely, devices with a computer microprocessor for sensing, measuring, analyzing horizontal and vertical leg movements
Electrical and Scientific Apparatus