00762cam a22002291 4500 e 18001040 DLC 20260227111209.0 830210s1918 dcua 000 0 eng e 18001040 (OCoLC)29092991 DLC MnU DLC premarc LB1045 .A25 no. 16 United States. Federal Board for Vocational Education. Emergency war training for radio mechanics and radio operators. Washington, Govt. print. off., 1918. 75 p. diagrs. 23 cm. Bound with Vocational Division bulletin no. 17-no. 27 subsequent to publication. Telegraph, Wireless. Radio mechanics and radio operators. 20249 20249