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AU128181B2 - Improvements in or relating to telephone systems - Google Patents
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AU128181B2 - Improvements in or relating to telephone systems - Google Patents

Improvements in or relating to telephone systems

Info

Publication number
AU128181B2
AU128181B2 AU18731/48A AU1873148A AU128181B2 AU 128181 B2 AU128181 B2 AU 128181B2 AU 18731/48 A AU18731/48 A AU 18731/48A AU 1873148 A AU1873148 A AU 1873148A AU 128181 B2 AU128181 B2 AU 128181B2
Authority
AU
Australia
Prior art keywords
relating
telephone systems
telephone
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
AU18731/48A
Other versions
AU1873148A (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.)
Automatic Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
Filing date
Publication date
Application filed by Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd
Application granted granted Critical
Publication of AU128181B2 publication Critical patent/AU128181B2/en
Publication of AU1873148A publication Critical patent/AU1873148A/en
Expired legal-status Critical Current

Links

AU18731/48A 1945-05-01 Improvements in or relating to telephone systems Expired AU128181B2 (en)

Publications (2)

Publication Number Publication Date
AU128181B2 true AU128181B2 (en) 1948-07-15
AU1873148A AU1873148A (en) 1948-07-15

Family

ID=

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