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Variable Frequency Pulse Jet Engine Patent Print - Old Look Patent Title: Variable Frequency Pulse Jet Engine Inventor Name: Britton...read more
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Variable Frequency Pulse Jet Engine Patent Print - Old Look Patent Title: Variable Frequency Pulse Jet Engine Inventor Name: Britton Sylvester C; Schirmer Robert M Year Issued: July 20 1954 Item Number: 15443 Reprint of original Patent Pat...