000			00624 a2200133 4500
082			_a621.388 _bB777t
245	1		_aTELEVISION FIELD TRIALS OF 405-LINE AND 625-LINE SYSTEMS IN THE UHF AND VHF BANDS 1957-1958 _cPt. I. RESULTS OF FIELD TRIALS OF 405-LINE TELEVISION IN BANDS I & IV, Pt II. RESULTS OF FIELD TRIALS OF 405-LINE TELEVISION IN BAND 1 & 625-LINE TELEVISION IN BAND 1 AND 625-LINE TELEVISION IN BAND V
260			_aLondon _bB. B. C. _c1960
300			_a152,Y
650			_aTelevision Broadcasting -- Great Britain
650			_aTelevision -- Transmitters And Transmission
964			_gCIRC
997			_a39175 s C
999			_c455456 _d455456