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AU117924B2 - Improvements relating to telephone systems - Google Patents

Improvements relating to telephone systems

Info

Publication number
AU117924B2
AU117924B2 AU5758/42A AU575842A AU117924B2 AU 117924 B2 AU117924 B2 AU 117924B2 AU 5758/42 A AU5758/42 A AU 5758/42A AU 575842 A AU575842 A AU 575842A AU 117924 B2 AU117924 B2 AU 117924B2
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
AU5758/42A
Other versions
AU575842A (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 AU117924B2 publication Critical patent/AU117924B2/en
Publication of AU575842A publication Critical patent/AU575842A/en
Expired legal-status Critical Current

Links

AU5758/42A 1942-06-16 Improvements relating to telephone systems Expired AU117924B2 (en)

Publications (2)

Publication Number Publication Date
AU117924B2 true AU117924B2 (en) 1944-01-13
AU575842A AU575842A (en) 1944-01-13

Family

ID=

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