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Hi,
this patent issued by Mr. Umberto Savoia in 1933,and assigned to Fiat company,it proposed for
dual-purpose plane to rise vertically ?!.
this patent issued by Mr. Umberto Savoia in 1933,and assigned to Fiat company,it proposed for
dual-purpose plane to rise vertically ?!.

Proposed Dual-Purpose Plane To Rise Vertically - Science And Mechanics (Jan, 1933)
blog.modernmechanix.com