AU653927A - Improvements in or relating to telephone systems - Google Patents

Improvements in or relating to telephone systems

Info

Publication number
AU653927A
AU653927A AU6539/27A AU653927A AU653927A AU 653927 A AU653927 A AU 653927A AU 6539/27 A AU6539/27 A AU 6539/27A AU 653927 A AU653927 A AU 653927A AU 653927 A AU653927 A AU 653927A
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
AU6539/27A
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.)
Associated Telephone and Telegraph Co
Original Assignee
Associated Telephone and Telegraph Co
Filing date
Publication date
Application filed by Associated Telephone and Telegraph Co filed Critical Associated Telephone and Telegraph Co
Publication of AU653927A publication Critical patent/AU653927A/en
Expired legal-status Critical Current

Links

AU6539/27A 1927-03-22 Improvements in or relating to telephone systems Expired AU653927A (en)

Publications (1)

Publication Number Publication Date
AU653927A true AU653927A (en) 1928-05-01

Family

ID=

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