AU1680424A - Improvements in or relating' to telephone systems - Google Patents

Improvements in or relating' to telephone systems

Info

Publication number
AU1680424A
AU1680424A AU16804/24A AU1680424A AU1680424A AU 1680424 A AU1680424 A AU 1680424A AU 16804/24 A AU16804/24 A AU 16804/24A AU 1680424 A AU1680424 A AU 1680424A AU 1680424 A AU1680424 A AU 1680424A
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
AU16804/24A
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 Electric Co
Original Assignee
Automatic Electric Co
Filing date
Publication date
Application filed by Automatic Electric Co filed Critical Automatic Electric Co
Publication of AU1680424A publication Critical patent/AU1680424A/en
Expired legal-status Critical Current

Links

AU16804/24A 1924-03-10 Improvements in or relating' to telephone systems Expired AU1680424A (en)

Publications (1)

Publication Number Publication Date
AU1680424A true AU1680424A (en) 1924-03-20

Family

ID=

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