AU111391B2 - Improvements in or relating to telephone systems - Google Patents

Improvements in or relating to telephone systems

Info

Publication number
AU111391B2
AU111391B2 AU4097/39A AU409739A AU111391B2 AU 111391 B2 AU111391 B2 AU 111391B2 AU 4097/39 A AU4097/39 A AU 4097/39A AU 409739 A AU409739 A AU 409739A AU 111391 B2 AU111391 B2 AU 111391B2
Authority
AU
Australia
Prior art keywords
relating
telephone systems
telephone
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
AU4097/39A
Other versions
AU409739A (en
Inventor
Clifford Hartley George
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.)
Nokia Services Ltd
Original Assignee
Standard Telephone and Cables Pty Ltd
Filing date
Publication date
Application filed by Standard Telephone and Cables Pty Ltd filed Critical Standard Telephone and Cables Pty Ltd
Application granted granted Critical
Publication of AU409739A publication Critical patent/AU409739A/en
Publication of AU111391B2 publication Critical patent/AU111391B2/en
Expired legal-status Critical Current

Links

AU4097/39A 1939-09-01 Improvements in or relating to telephone systems Expired AU111391B2 (en)

Publications (2)

Publication Number Publication Date
AU409739A AU409739A (en) 1940-09-12
AU111391B2 true AU111391B2 (en) 1940-09-12

Family

ID=

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