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AU139728B2 - Improvements in telephone transmission systems - Google Patents
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AU139728B2 - Improvements in telephone transmission systems - Google Patents

Improvements in telephone transmission systems

Info

Publication number
AU139728B2
AU139728B2 AU8154/46A AU815446A AU139728B2 AU 139728 B2 AU139728 B2 AU 139728B2 AU 8154/46 A AU8154/46 A AU 8154/46A AU 815446 A AU815446 A AU 815446A AU 139728 B2 AU139728 B2 AU 139728B2
Authority
AU
Australia
Prior art keywords
transmission systems
telephone transmission
telephone
systems
transmission
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
AU8154/46A
Other versions
AU815446A (en
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.)
Communication Engineering Pty Ltd
Original Assignee
Communication Engineering Pty Ltd
Filing date
Publication date
Application filed by Communication Engineering Pty Ltd filed Critical Communication Engineering Pty Ltd
Application granted granted Critical
Publication of AU815446A publication Critical patent/AU815446A/en
Publication of AU139728B2 publication Critical patent/AU139728B2/en
Expired legal-status Critical Current

Links

AU8154/46A 1946-11-18 Improvements in telephone transmission systems Expired AU139728B2 (en)

Publications (2)

Publication Number Publication Date
AU815446A AU815446A (en) 1947-11-20
AU139728B2 true AU139728B2 (en) 1947-11-20

Family

ID=

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