AU476412A - Improvements in or relating to telephone systems - Google Patents

Improvements in or relating to telephone systems

Info

Publication number
AU476412A
AU476412A AU4764/12A AU476412A AU476412A AU 476412 A AU476412 A AU 476412A AU 4764/12 A AU4764/12 A AU 4764/12A AU 476412 A AU476412 A AU 476412A AU 476412 A AU476412 A AU 476412A
Authority
AU
Australia
Prior art keywords
relating
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
AU4764/12A
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 Electric Co
Original Assignee
Automatic Electric Co
Filing date
Publication date
Application filed by Automatic Electric Co filed Critical Automatic Electric Co
Publication of AU476412A publication Critical patent/AU476412A/en
Expired legal-status Critical Current

Links

AU4764/12A 1912-05-01 Improvements in or relating to telephone systems Expired AU476412A (en)

Publications (1)

Publication Number Publication Date
AU476412A true AU476412A (en) 1913-05-13

Family

ID=

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