AU390146A - Improvements relating to telephone systems - Google Patents

Improvements relating to telephone systems

Info

Publication number
AU390146A
AU390146A AU3901/46A AU390146A AU390146A AU 390146 A AU390146 A AU 390146A AU 3901/46 A AU3901/46 A AU 3901/46A AU 390146 A AU390146 A AU 390146A AU 390146 A AU390146 A AU 390146A
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
AU3901/46A
Other versions
AU135723B2 (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 AU390146A publication Critical patent/AU390146A/en
Publication of AU135723B2 publication Critical patent/AU135723B2/en
Expired legal-status Critical Current

Links

AU3901/46A 1946-05-28 Improvements relating to telephone systems Expired AU135723B2 (en)

Publications (2)

Publication Number Publication Date
AU390146A true AU390146A (en) 1946-11-28
AU135723B2 AU135723B2 (en) 1946-11-28

Family

ID=

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