AU1118728A - Improvements in automatic telephone systems - Google Patents

Improvements in automatic telephone systems

Info

Publication number
AU1118728A
AU1118728A AU11187/28A AU1118728A AU1118728A AU 1118728 A AU1118728 A AU 1118728A AU 11187/28 A AU11187/28 A AU 11187/28A AU 1118728 A AU1118728 A AU 1118728A AU 1118728 A AU1118728 A AU 1118728A
Authority
AU
Australia
Prior art keywords
telephone systems
automatic telephone
automatic
systems
telephone
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
AU11187/28A
Filing date
Publication date
Application filed filed Critical
Publication of AU1118728A publication Critical patent/AU1118728A/en
Expired legal-status Critical Current

Links

AU11187/28A 1928-05-22 Improvements in automatic telephone systems Expired AU1118728A (en)

Publications (1)

Publication Number Publication Date
AU1118728A true AU1118728A (en) 1928-06-05

Family

ID=

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