Holbrook Airplane-Helicopter of 1910

Thread starter hesham
Start date 21 May 2020

hesham

ACCESS: USAP

Senior Member

21 May 2020

#1

Hi,

here is a Arthur Erritt Holbrook Airplane-Helicopter patent of 1910.

American airplanes: Ha - Hu

HOLBROOK, DECHENNE AIRPLANE, MONETT & JOPLIN, MISSOURI HISTORY

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