Jet Reaction Helicopter Patent Filed 1946 By Frank Barkley.

The Jet Reaction Helicopter Patent filed in 1946 by Frank Barkley has the five patent drawibgs and the complete explanation pages . You can look up the patent # 2,605,608 on google. This origional patent represents a significant advancement in reaction motor blade propulsion system with detailed documentation and diagrams making it a sought-after item for aviation enthusiasts and collectors alike. Separated and framed this would be an interesting wall display for any aviation enthusiast. Best to all and please see my other aviation listings Sundays on Ebay at Airmeet . 60 years of my personal collection needs new caretakers. Thanks for viewing, Scott/Airmeet on Ebay/ N777L ♥️ 🏁