AU1815053A - Improvements in telephone systems - Google Patents

Improvements in telephone systems

Info

Publication number
AU1815053A
AU1815053A AU18150/53A AU1815053A AU1815053A AU 1815053 A AU1815053 A AU 1815053A AU 18150/53 A AU18150/53 A AU 18150/53A AU 1815053 A AU1815053 A AU 1815053A AU 1815053 A AU1815053 A AU 1815053A
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
AU18150/53A
Other versions
AU165054B2 (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 Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
Filing date
Publication date
Application granted granted Critical
Publication of AU165054B2 publication Critical patent/AU165054B2/en
Publication of AU1815053A publication Critical patent/AU1815053A/en
Application filed by Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd
Expired legal-status Critical Current

Links

AU18150/53A 1954-05-11 Improvements in telephone systems Expired AU165054B2 (en)

Publications (2)

Publication Number Publication Date
AU165054B2 AU165054B2 (en) 1953-06-16
AU1815053A true AU1815053A (en) 1953-06-16

Family

ID=

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