Maurice Léger's Electric Helicopter (1905), the Berliner/Williams Helicopter (1907), the PZK 1 and PZK 2 Helicopters (1917-1918) and the de Bothezat Helicopter (1922): The Facts and Fictions Surrounding Four (Justifiably?) Dubious Rotary-Wing Firsts
Bruce Charnov, Hofstra University
May 21, 2013
Maurice Léger's Electric Helicopter (1905), the Berliner/Williams Helicopter (1907), the PZK 1 and PZK 2 Helicopters (1917-1918) and the de Bothezat Helicopter (1922): The Facts and Fictions Surrounding Four (Justifiably?) Dubious Rotary-Wing Firsts
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- SKU # : 69-2013-0019
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Maurice Léger's Electric Helicopter (1905), the Berliner/Williams Helicopter (1907), the PZK 1 and PZK 2 Helicopters (1917-1918) and the de Bothezat Helicopter (1922): The Facts and Fictions Surrounding Four (Justifiably?) Dubious Rotary-Wing Firsts
Authors / Details: Bruce Charnov, Hofstra University
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