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In the tradition of The Anti-Gravity Handbook and the Time-Travel Handbook comes this all-new compilation of material on anti-gravity, free energy,

The Anti-Gravity Files: A Compilation of Patents and Reports

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Anti-Gravity Propulsion Dynamics: Ufos and Gravitational Manipulation by Paul Po 9781939149589

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Secrets of Antigravity Propulsion: Tesla, UFOs, and Classified