AU205630B2 - Improvements in telephone systems - Google Patents

Improvements in telephone systems

Info

Publication number
AU205630B2
AU205630B2 AU8917/55A AU891755A AU205630B2 AU 205630 B2 AU205630 B2 AU 205630B2 AU 8917/55 A AU8917/55 A AU 8917/55A AU 891755 A AU891755 A AU 891755A AU 205630 B2 AU205630 B2 AU 205630B2
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
AU8917/55A
Other versions
AU891755A (en
Inventor
Curtis and Peter Russell Robinson Gerald
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 filed by Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd
Application granted granted Critical
Publication of AU205630B2 publication Critical patent/AU205630B2/en
Publication of AU891755A publication Critical patent/AU891755A/en
Expired legal-status Critical Current

Links

AU8917/55A 1955-05-06 Improvements in telephone systems Expired AU205630B2 (en)

Publications (2)

Publication Number Publication Date
AU205630B2 true AU205630B2 (en) 1955-11-10
AU891755A AU891755A (en) 1955-11-10

Family

ID=

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