00447nam a2200169Ia 4500003000900000008004100009040001600050080002100066100002000087245004500107260003200152300001400184650001500198650002800213650002000241650001600261IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a621.3.029.6bGLE  aGledhill, C. S. 0aV. H. F. line techniquesc C. S Gledhill  aLondonbEdward Arnoldc1960  aiii, 60p.  aMicrowaves  aRadio Detection Finders  aSolar Compasses  aWave guides