AU534438A - Improvements in or relating to telephone systems - Google Patents

Improvements in or relating to telephone systems

Info

Publication number
AU534438A
AU534438A AU5344/38A AU534438A AU534438A AU 534438 A AU534438 A AU 534438A AU 5344/38 A AU5344/38 A AU 5344/38A AU 534438 A AU534438 A AU 534438A AU 534438 A AU534438 A AU 534438A
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
AU5344/38A
Other versions
AU109277B2 (en
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 Electric Laboratories Inc
Original Assignee
Associated Electric Laboratories Inc
Filing date
Publication date
Application filed by Associated Electric Laboratories Inc filed Critical Associated Electric Laboratories Inc
Application granted granted Critical
Publication of AU534438A publication Critical patent/AU534438A/en
Publication of AU109277B2 publication Critical patent/AU109277B2/en
Expired legal-status Critical Current

Links

AU5344/38A 1938-12-02 Improvements in or relating to telephone systems Expired AU109277B2 (en)

Publications (2)

Publication Number Publication Date
AU534438A true AU534438A (en) 1939-12-14
AU109277B2 AU109277B2 (en) 1939-12-14

Family

ID=

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