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Technical bulletin no. 42. Development of military aircraft material for United States Army Air Service under supervision of Engineering Division

United States. Army. Air Service. Engineering Division. (2016-06-30)

Technical bulletin no. 45. Development of military aircraft material for United States Army Air Service under supervision of Engineering Division

United States. Army. Air Service. Engineering Division. (2016-07-18)

Technical bulletin no. 43. Development of military aircraft material for United States Army Air Service under supervision of Engineering Division

United States. Army. Air Service. Engineering Division. (2016-07-08)

Technical bulletin no. 44. Development of military aircraft material for United States Army Air Service under supervision of Engineering Division

United States. Army. Air Service. Engineering Division. (2016-07-08)