W.T. <br/><br/>
Modern Telegraph System And Equipment :  Covering Voice Frequency, Telex Sub Audio And Varioplex Systems And All Type Of Modern Apparatus Including The Teleprinter, Teletypwriter And Creed Automatic 5-Unit And Morse Equipment / 
W.T. 
 - 1st 
 - Britain :  George Newnes Limited,  1946 
 - 215 pages 
 -  Vol-1 .
<br/><br/> Shelf No. 2.3 
<br/><br/>Condition: GOOD CONDITION 
<br/><br/> Hardback  
<br/><br/><label>Subjects--Topical Terms: </label><br/>COMMUNICATION
<br/><br/><label>Dewey Class. No.: </label>621.382  / W.621