AU211197B2 - Improvements in telephone systems - Google Patents

Improvements in telephone systems

Info

Publication number
AU211197B2
AU211197B2 AU10187/55A AU1018755A AU211197B2 AU 211197 B2 AU211197 B2 AU 211197B2 AU 10187/55 A AU10187/55 A AU 10187/55A AU 1018755 A AU1018755 A AU 1018755A AU 211197 B2 AU211197 B2 AU 211197B2
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
AU10187/55A
Other versions
AU1018755A (en
Inventor
Davison and Ronald Threadgold Alan
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 AU211197B2 publication Critical patent/AU211197B2/en
Publication of AU1018755A publication Critical patent/AU1018755A/en
Expired legal-status Critical Current

Links

AU10187/55A 1955-06-28 Improvements in telephone systems Expired AU211197B2 (en)

Publications (2)

Publication Number Publication Date
AU211197B2 true AU211197B2 (en) 1956-01-05
AU1018755A AU1018755A (en) 1956-01-05

Family

ID=

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