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AU112801B2 - Improvements relating to telephone systems - Google Patents

Improvements relating to telephone systems

Info

Publication number
AU112801B2
AU112801B2 AU2005/40A AU200540A AU112801B2 AU 112801 B2 AU112801 B2 AU 112801B2 AU 2005/40 A AU2005/40 A AU 2005/40A AU 200540 A AU200540 A AU 200540A AU 112801 B2 AU112801 B2 AU 112801B2
Authority
AU
Australia
Prior art keywords
improvements relating
telephone systems
telephone
relating
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
AU2005/40A
Other versions
AU200540A (en
Inventor
Horace Edgar Humphries Douglas Percy Long
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.)
Siemens Brothers and Co Ltd
Original Assignee
Siemens Brothers and Co Ltd
Filing date
Publication date
Application filed by Siemens Brothers and Co Ltd filed Critical Siemens Brothers and Co Ltd
Application granted granted Critical
Publication of AU200540A publication Critical patent/AU200540A/en
Publication of AU112801B2 publication Critical patent/AU112801B2/en
Expired legal-status Critical Current

Links

AU2005/40A 1940-05-21 Improvements relating to telephone systems Expired AU112801B2 (en)

Publications (2)

Publication Number Publication Date
AU200540A AU200540A (en) 1941-01-09
AU112801B2 true AU112801B2 (en) 1941-01-09

Family

ID=

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