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- 80485236 alternative "Signalling system R. 2.".
- 80485236 contributor B3875977.
- 80485236 created "1969.".
- 80485236 date "1969".
- 80485236 date "1969.".
- 80485236 dateCopyrighted "1969.".
- 80485236 extent "118 p. :".
- 80485236 issued "1969".
- 80485236 issued "1969.".
- 80485236 language "eng".
- 80485236 publisher "[Geneva] : International Telecommunication Union,".
- 80485236 subject "621.385 19".
- 80485236 subject "TK6301 .I57 1969".
- 80485236 subject "Telephone Signaling.".
- 80485236 title "Detailed specifications of signalling system R.2 : with explanatory annexes and comments with regard to the use of this system for national networks : (text presented by the Swiss Administration in conformity with the decisions of the C.C.I.T.T. IVth Plenary Assembly at Mar del Plata).".
- 80485236 type "text".