AU203236B2 - Improvements in audio-frequency signalling arrangements in multiplex carrier wave telephone systems - Google Patents

Improvements in audio-frequency signalling arrangements in multiplex carrier wave telephone systems

Info

Publication number
AU203236B2
AU203236B2 AU12430/55A AU1243055A AU203236B2 AU 203236 B2 AU203236 B2 AU 203236B2 AU 12430/55 A AU12430/55 A AU 12430/55A AU 1243055 A AU1243055 A AU 1243055A AU 203236 B2 AU203236 B2 AU 203236B2
Authority
AU
Australia
Prior art keywords
audio
carrier wave
telephone systems
frequency signalling
multiplex carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
AU12430/55A
Other versions
AU1243055A (en
Inventor
Whiteley Harrison Kenneth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telephone Manufacturing Co Ltd
Original Assignee
Telephone Manufacturing Co Ltd
Filing date
Publication date
Application filed by Telephone Manufacturing Co Ltd filed Critical Telephone Manufacturing Co Ltd
Application granted granted Critical
Publication of AU1243055A publication Critical patent/AU1243055A/en
Publication of AU203236B2 publication Critical patent/AU203236B2/en
Expired legal-status Critical Current

Links

AU12430/55A 1955-09-26 Improvements in audio-frequency signalling arrangements in multiplex carrier wave telephone systems Expired AU203236B2 (en)

Publications (2)

Publication Number Publication Date
AU1243055A AU1243055A (en) 1956-03-29
AU203236B2 true AU203236B2 (en) 1956-03-29

Family

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