AU112039B2 - Improvements relating to telephone systems - Google Patents

Improvements relating to telephone systems

Info

Publication number
AU112039B2
AU112039B2 AU5300/39A AU530039A AU112039B2 AU 112039 B2 AU112039 B2 AU 112039B2 AU 5300/39 A AU5300/39 A AU 5300/39A AU 530039 A AU530039 A AU 530039A AU 112039 B2 AU112039 B2 AU 112039B2
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
AU5300/39A
Other versions
AU530039A (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.)
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 AU112039B2 publication Critical patent/AU112039B2/en
Publication of AU530039A publication Critical patent/AU530039A/en
Expired legal-status Critical Current

Links

AU5300/39A 1939-11-29 Improvements relating to telephone systems Expired AU112039B2 (en)

Publications (2)

Publication Number Publication Date
AU112039B2 true AU112039B2 (en) 1940-12-12
AU530039A AU530039A (en) 1940-12-12

Family

ID=

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