The US Army Signal School apprenticeship program for the trade of telegraphic-teletypewriter operator
By: Headquarters, Department of the Army.
Series: DA pam 621 ; 100; DA pam -- 621-100.
Publisher: [Dept. of Defense], Dept. of the Army, Headquarters
Published: 1979
Place of publication: Washington
Language: eng
Subjects: U.S. Army Signal School -- Curricula.; Apprentices -- United States.; Military telegraph.
Notes: This pamphlet supersedes DA Pam 621-100, Dec. 15, 1977.

May 1, 1979.