AU1549444A - Improvements in telephone systems - Google Patents

Improvements in telephone systems

Info

Publication number
AU1549444A
AU1549444A AU15494/44A AU1549444A AU1549444A AU 1549444 A AU1549444 A AU 1549444A AU 15494/44 A AU15494/44 A AU 15494/44A AU 1549444 A AU1549444 A AU 1549444A AU 1549444 A AU1549444 A AU 1549444A
Authority
AU
Australia
Prior art keywords
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
AU15494/44A
Other versions
AU119658B2 (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.)
Automatic Electric Laboratories Inc
Original Assignee
Automatic Electric Laboratories Inc
Filing date
Publication date
Application filed by Automatic Electric Laboratories Inc filed Critical Automatic Electric Laboratories Inc
Application granted granted Critical
Publication of AU119658B2 publication Critical patent/AU119658B2/en
Publication of AU1549444A publication Critical patent/AU1549444A/en
Expired legal-status Critical Current

Links

AU15494/44A 1943-01-28 Improvements in telephone systems Expired AU119658B2 (en)

Publications (2)

Publication Number Publication Date
AU119658B2 AU119658B2 (en) 1945-03-15
AU1549444A true AU1549444A (en) 1945-03-15

Family

ID=

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