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AU2219862A - Multiple voice frequency signalling systems - Google Patents

Multiple voice frequency signalling systems

Info

Publication number
AU2219862A
AU2219862A AU22198/62A AU2219862A AU2219862A AU 2219862 A AU2219862 A AU 2219862A AU 22198/62 A AU22198/62 A AU 22198/62A AU 2219862 A AU2219862 A AU 2219862A AU 2219862 A AU2219862 A AU 2219862A
Authority
AU
Australia
Prior art keywords
voice frequency
multiple voice
signalling systems
frequency signalling
systems
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
AU22198/62A
Other versions
AU274926B2 (en
Inventor
Stephen Zucker Robert
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.)
Western Australia Pty Ltd
Original Assignee
Western Australia Pty Ltd
Filing date
Publication date
Application filed by Western Australia Pty Ltd filed Critical Western Australia Pty Ltd
Application granted granted Critical
Publication of AU2219862A publication Critical patent/AU2219862A/en
Publication of AU274926B2 publication Critical patent/AU274926B2/en
Expired legal-status Critical Current

Links

AU22198/62A 1962-09-17 Multiple voice frequency signalling systems Expired AU274926B2 (en)

Publications (2)

Publication Number Publication Date
AU2219862A true AU2219862A (en) 1965-03-18
AU274926B2 AU274926B2 (en) 1965-03-18

Family

ID=

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