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Jet Driven Helicopter Rotor System Patent Print - Blueprint Patent Title: Jet Driven Helicopter Rotor System Inventor Name: Nagler...read more
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Jet Driven Helicopter Rotor System Patent Print - Blueprint Patent Title: Jet Driven Helicopter Rotor System Inventor Name: Nagler Bruno Year Issued: March 13 1956 Item Number: 13183 Reprint of original Patent Patent is printed on premium ...