Inventor

HANNA ALLEN H

US3 patents

Patents

3 patents

US5634872AJun 3, 1997

Apparatus for use in enhancing explosive leg power

INSTRUCTIONAL FITNESS PROGRAMS18 citations87

US5417631AMay 23, 1995

Method for use in enhancing explosive leg power

INSTRUCTIONAL FITNESS PROGRAMS8 citations68

US5209713AMay 11, 1993

Method and apparatus for use in enhancing explosive leg power

INSTRUCTIONAL FITNESS PROGRAMS13 citations68