00539nam a2200181Ia 4500003000900000008004100009040001600050080002200066100001900088245009900107250001200206260003700218300001500255650002700270650002300297650001900320700001800339IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a(035)654.164bHAW  aHawkhead, J. C 0aHandbook of technical instruction for wireless telegraphistscJ. C. Hawkhead and H. M. Dowsett  a2nd ed.  aLondonbThe Wireless Pressc1918  axvi, 309p.  aHandbooks-Telegraphics  aHandbooks-Wireless  aNASA Thesaurus  aDowestt, H. M