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AU118312B2 - Improvements in telephone systems - Google Patents

Improvements in telephone systems

Info

Publication number
AU118312B2
AU118312B2 AU7167/42A AU716742A AU118312B2 AU 118312 B2 AU118312 B2 AU 118312B2 AU 7167/42 A AU7167/42 A AU 7167/42A AU 716742 A AU716742 A AU 716742A AU 118312 B2 AU118312 B2 AU 118312B2
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
AU7167/42A
Other versions
AU716742A (en
Inventor
and Harry G. Evers uf Illinois COS. A Lawrence Denton
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 AU118312B2 publication Critical patent/AU118312B2/en
Publication of AU716742A publication Critical patent/AU716742A/en
Expired legal-status Critical Current

Links

AU7167/42A 1942-10-24 Improvements in telephone systems Expired AU118312B2 (en)

Publications (2)

Publication Number Publication Date
AU118312B2 true AU118312B2 (en) 1944-04-06
AU716742A AU716742A (en) 1944-04-06

Family

ID=

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