Books about Perpetual motion (sorted by popularity) - Project Gutenberg

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A Budget of Paradoxes, Volume I Augustus De Morgan 354 downloads
A Budget of Paradoxes, Volume II Augustus De Morgan 263 downloads
Perpetual Motion Henry Dircks and Percy Verance 96 downloads
Bangerter's Inventions; His Marvelous Time Clock 60 downloads
Displaying results 1–4