TY  - BOOK
AU  - W.T.
TI  - 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 
U1  - 621.382 
PY  - 1946///
CY  - Britain
PB  - George Newnes Limited
KW  - COMMUNICATION
N1  - Shelf No. 2.3; Condition: GOOD CONDITION
ER  -