AU1547723A - Improvements in or relating to telephone systems - Google Patents

Improvements in or relating to telephone systems

Info

Publication number
AU1547723A
AU1547723A AU15477/23A AU1547723A AU1547723A AU 1547723 A AU1547723 A AU 1547723A AU 15477/23 A AU15477/23 A AU 15477/23A AU 1547723 A AU1547723 A AU 1547723A AU 1547723 A AU1547723 A AU 1547723A
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
AU15477/23A
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.)
Automatic Elkctimc Co
Original Assignee
Automatic Elkctimc Co
Filing date
Publication date
Application filed by Automatic Elkctimc Co filed Critical Automatic Elkctimc Co
Publication of AU1547723A publication Critical patent/AU1547723A/en
Expired legal-status Critical Current

Links

AU15477/23A 1923-12-04 Improvements in or relating to telephone systems Expired AU1547723A (en)

Publications (1)

Publication Number Publication Date
AU1547723A true AU1547723A (en) 1923-12-24

Family

ID=

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