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Holbrook, Arthur Erritt / Holbrook Helicopter Aeroplane Co. 1910 Aeroplane
High-wing monoplane designed by Arthur Erritt Holbrook and built by the Holbrook Helicopter Aeroplane Co. in Joplin, Missouri. At around the time of the founding of his company, Holbrook also filed (January 19, 1910) to patent an Aeroplane; rather a tandem wing monoplane fitted with both tractor propeller and vertical rotors – hence the name of the firm. Four years later, on February 10, 1914, Holbrook was finally granted US Patent 1,086,916 for his invention. It is reasonable to assume that this photographed machine, with shafts protruding above the wing, was a “first draft” to be augmented to a form visible in the patent of Holbrook, where two rotary propellers are visible. After its appearance in 1910, Holbrook’s aeroplane was never heard from again.

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