AU2559230A - Improvements relating to telephone systems - Google Patents

Improvements relating to telephone systems

Info

Publication number
AU2559230A
AU2559230A AU25592/30A AU2559230A AU2559230A AU 2559230 A AU2559230 A AU 2559230A AU 25592/30 A AU25592/30 A AU 25592/30A AU 2559230 A AU2559230 A AU 2559230A AU 2559230 A AU2559230 A AU 2559230A
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
AU25592/30A
Inventor
Edgar Humphries Horace
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
Publication of AU2559230A publication Critical patent/AU2559230A/en
Expired legal-status Critical Current

Links

AU25592/30A 1930-11-10 Improvements relating to telephone systems Expired AU2559230A (en)

Publications (1)

Publication Number Publication Date
AU2559230A true AU2559230A (en) 1930-11-25

Family

ID=

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