Overunity Gravity Power from 1939

1939 Gravity Power 1200% efficient by William F. Skinner. Search google: https://www.google.com/search?q=william f skinner 1939 gravity power

• 2014-06-04T05:06:21+00:00
• Duración: 01:01

Share

Keywords

overunity, free energy, gravity power, william skinner