AU798443A - Improvements in telephone systems - Google Patents

Improvements in telephone systems

Info

Publication number
AU798443A
AU798443A AU7984/43A AU798443A AU798443A AU 798443 A AU798443 A AU 798443A AU 7984/43 A AU7984/43 A AU 7984/43A AU 798443 A AU798443 A AU 798443A AU 798443 A AU798443 A AU 798443A
Authority
AU
Australia
Prior art keywords
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
AU7984/43A
Other versions
AU118702B2 (en
Inventor
Illinois ES. A Pier Barker
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 AU798443A publication Critical patent/AU798443A/en
Publication of AU118702B2 publication Critical patent/AU118702B2/en
Expired legal-status Critical Current

Links

AU7984/43A 1943-01-13 Improvements in telephone systems Expired AU118702B2 (en)

Publications (2)

Publication Number Publication Date
AU798443A true AU798443A (en) 1944-07-27
AU118702B2 AU118702B2 (en) 1944-07-27

Family

ID=

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