AU113435B2 - Improvements in or relating to telephone systems - Google Patents

Improvements in or relating to telephone systems

Info

Publication number
AU113435B2
AU113435B2 AU1786/40A AU178640A AU113435B2 AU 113435 B2 AU113435 B2 AU 113435B2 AU 1786/40 A AU1786/40 A AU 1786/40A AU 178640 A AU178640 A AU 178640A AU 113435 B2 AU113435 B2 AU 113435B2
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
AU1786/40A
Other versions
AU178640A (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 AU113435B2 publication Critical patent/AU113435B2/en
Publication of AU178640A publication Critical patent/AU178640A/en
Expired legal-status Critical Current

Links

AU1786/40A 1940-05-07 Improvements in or relating to telephone systems Expired AU113435B2 (en)

Publications (2)

Publication Number Publication Date
AU113435B2 true AU113435B2 (en) 1941-07-17
AU178640A AU178640A (en) 1941-07-17

Family

ID=

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