Earle Blount Tilt-Rotor Airplane of 1933

Thread starter hesham
Start date 23 May 2017

hesham

ACCESS: USAP

Senior Member

23 May 2017

#1

Hi,

https://www.google.st/patents/US1951817?dq=E.+E.+BLOUNT+AIRPLANE&hl=pt-PT&sa=X&ved=0ahUKEwjeoafbtYbUAhXH6RQKHWxJCx0Q6AEIJDAA

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