Regulations for United States military telegraph lines, alaskan cables, and telegraph stations u.s. signal corps / prepared under the direction of brigadier general George P. … Regulations for United States military telegraph lines, alaskan cables, and telegraph stations u.s. signal corps / prepared under the direction of brigadier general George P. … Principles of long distance telephone and telegraph transmission - USA Voorschrift, Technical Manual, 11-475 Signal : Commercial telephone, telegraph and electric time service, general - USA Voorschrift, Army Regulations, No. 105-30 brochures van de sectie luchtmachthistorie staf bevelhebber der luchtstrijdkrachten Voor hen die vielen" : Jackson 1992 : verslag van de Nederlandse herdenking in de Verenigde Staten / door W.H. Lutgert, R. de Winter Signal Corps : Telegraph, cable and radio service - USA Voorschrift, Army Regulations, No. 105-25
