20-mm automatic gun M1 and 20-mm aircraft automatic gun AN-M2
By: prepared under the direction of the Chief of Ordnance (with the cooperation of the Chief of the Bureau of Ordnance, Navy Department)
Contributors: United States. Army. Ordnance Dept; United States. Navy Dept. Bureau of Ordnance
Series: Technical manual -- 9-1227; Technical manual (United States. War Dept.) -- 9-1227
Publisher: War Dept.
Published: 1943
Place of publication: Washington, D.C
Language: eng
Number of pages: 56
Subjects: Machine guns -- Handbooks, manuals, etc; Airplanes, Military -- Armament -- Handbooks, manuals, etc
Genres: Handbooks, manuals, etc
Other titles: Ordnance maintenance; Ordnance maintenance, 20-mm automatic gun M1 and 20-mm aircraft automatic gun AN-M2; 20-mm aircraft automatic gun AN-M2
Notes: Caption title

At head of title: Ordnance maintenance

"10 June 1943."

Includes index

"This manual supersedes TM 9-1227, 7 August 1942; TB 1227-1, 10 October 1942; TB 1227-2, 9 June 1943; Ordnance School manual (OS) no. 9-3, 15 August 1941; and Ordnance School Manual (OS) no. 9-45, December 1942."

"References": p. 54