Sound and vision broadcasting 

 - Chelmsford, Essex :  Marconi Communication Systems Limited,  1960-1974 
 - v. 
<br/><br/><label>ISSN: </label>0038-1829 
 = Sound and vision broadcasting 
 = Sound vis. broadcast. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SONIDO<br/>TELEVISION
<br/><br/><label>Universal Decimal Class. No.: </label>621.39