AU251939A - Improvements in or relating to telephone systems - Google Patents

Improvements in or relating to telephone systems

Info

Publication number
AU251939A
AU251939A AU2519/39A AU251939A AU251939A AU 251939 A AU251939 A AU 251939A AU 2519/39 A AU2519/39 A AU 2519/39A AU 251939 A AU251939 A AU 251939A AU 251939 A AU251939 A AU 251939A
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
AU2519/39A
Other versions
AU110996B2 (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.)
Associated Electric Laboratories Inc
Original Assignee
Associated Electric Laboratories Inc
Filing date
Publication date
Application filed by Associated Electric Laboratories Inc filed Critical Associated Electric Laboratories Inc
Application granted granted Critical
Publication of AU110996B2 publication Critical patent/AU110996B2/en
Publication of AU251939A publication Critical patent/AU251939A/en
Expired legal-status Critical Current

Links

AU2519/39A 1939-06-06 Improvements in or relating to telephone systems Expired AU110996B2 (en)

Publications (2)

Publication Number Publication Date
AU110996B2 AU110996B2 (en) 1940-07-18
AU251939A true AU251939A (en) 1940-07-18

Family

ID=

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