AU204127B2 - Improvements in telephone systems - Google Patents

Improvements in telephone systems

Info

Publication number
AU204127B2
AU204127B2 AU5018/54A AU501854A AU204127B2 AU 204127 B2 AU204127 B2 AU 204127B2 AU 5018/54 A AU5018/54 A AU 5018/54A AU 501854 A AU501854 A AU 501854A AU 204127 B2 AU204127 B2 AU 204127B2
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
AU5018/54A
Other versions
AU501854A (en
Inventor
Gordon Pearce and James Frederick Denby James
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 AU204127B2 publication Critical patent/AU204127B2/en
Publication of AU501854A publication Critical patent/AU501854A/en
Expired legal-status Critical Current

Links

AU5018/54A 1954-11-26 Improvements in telephone systems Expired AU204127B2 (en)

Publications (2)

Publication Number Publication Date
AU204127B2 true AU204127B2 (en) 1955-05-26
AU501854A AU501854A (en) 1955-05-26

Family

ID=

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