field manual Service company and medical detachment (supply and evacuation) infantry regiment / [War Department] field manual Defense against chemical attack field manual Tank gunnery training regulations Chemical warfare service / War Department : The technique of chemical weapons / War Department training regulations Chemical warfare service / War Department : Drill, the chemical squad, platoon and company (4-inch and 4.2-inch chemical mortar) / War Department army regulations. military school Chemical warfare service / War Department : Chemical warfare board / War Department army regulations. military school Chemical warfare service / War Department : General provisions / War Department army regulations. military school Chemical warfare service / War Department : General provisions / War Department training regulations Weapons / War Department : Browning tank machine gun, caliber .30, model of 1919 / War Department Battery charging set, type SCR-82 Telephone switchbord, type BD-14 Reel unit RL-26