AU226826B2 - Improvements in telephone systems - Google Patents

Improvements in telephone systems

Info

Publication number
AU226826B2
AU226826B2 AU42608/58A AU4260858A AU226826B2 AU 226826 B2 AU226826 B2 AU 226826B2 AU 42608/58 A AU42608/58 A AU 42608/58A AU 4260858 A AU4260858 A AU 4260858A AU 226826 B2 AU226826 B2 AU 226826B2
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
AU42608/58A
Other versions
AU4260858A (en
Inventor
John Frank Greenaway and Robert Henry Milton Kenneth George Marling
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of AU226826B2 publication Critical patent/AU226826B2/en
Publication of AU4260858A publication Critical patent/AU4260858A/en
Expired legal-status Critical Current

Links

AU42608/58A 1958-10-22 Improvements in telephone systems Expired AU226826B2 (en)

Publications (2)

Publication Number Publication Date
AU226826B2 true AU226826B2 (en) 1959-04-23
AU4260858A AU4260858A (en) 1959-04-23

Family

ID=

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