AU208819B2 - Improvements in telephone systems - Google Patents

Improvements in telephone systems

Info

Publication number
AU208819B2
AU208819B2 AU12285/55A AU1228555A AU208819B2 AU 208819 B2 AU208819 B2 AU 208819B2 AU 12285/55 A AU12285/55 A AU 12285/55A AU 1228555 A AU1228555 A AU 1228555A AU 208819 B2 AU208819 B2 AU 208819B2
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
AU12285/55A
Other versions
AU1228555A (en
Inventor
Edward Hopley and Kervin George Collyer Horace
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 AU1228555A publication Critical patent/AU1228555A/en
Publication of AU208819B2 publication Critical patent/AU208819B2/en
Expired legal-status Critical Current

Links

AU12285/55A 1955-09-20 Improvements in telephone systems Expired AU208819B2 (en)

Publications (2)

Publication Number Publication Date
AU1228555A AU1228555A (en) 1956-03-22
AU208819B2 true AU208819B2 (en) 1956-03-22

Family

ID=

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