20-MM aircraft gun materiel M1 and M2

An edition of 20-MM aircraft gun materiel M1 and M2 (1942)

20-MM aircraft gun materiel M1 and M2

By United States Department of War

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Publish Date

1942

Publisher

U.S. Govt. print. off.]

Language

eng

Pages

45

Description:

subjects: Airplanes, Military, Armament, Military Airplanes