AU226577B2 - Improvements in telephone systems - Google Patents

Improvements in telephone systems

Info

Publication number
AU226577B2
AU226577B2 AU42136/58A AU4213658A AU226577B2 AU 226577 B2 AU226577 B2 AU 226577B2 AU 42136/58 A AU42136/58 A AU 42136/58A AU 4213658 A AU4213658 A AU 4213658A AU 226577 B2 AU226577 B2 AU 226577B2
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
AU42136/58A
Other versions
AU4213658A (en
Inventor
Brian Delanoy Donald
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.)
Pye Electronic Products Ltd
Original Assignee
Pye Ltd
Filing date
Publication date
Application filed by Pye Ltd filed Critical Pye Ltd
Application granted granted Critical
Publication of AU4213658A publication Critical patent/AU4213658A/en
Publication of AU226577B2 publication Critical patent/AU226577B2/en
Expired legal-status Critical Current

Links

AU42136/58A 1958-10-08 Improvements in telephone systems Expired AU226577B2 (en)

Publications (2)

Publication Number Publication Date
AU4213658A AU4213658A (en) 1959-04-09
AU226577B2 true AU226577B2 (en) 1959-04-09

Family

ID=

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