AU358921A - Improvements in or relating' to telephone systems. 6 - Google Patents

Improvements in or relating' to telephone systems. 6

Info

Publication number
AU358921A
AU358921A AU3589/21A AU358921A AU358921A AU 358921 A AU358921 A AU 358921A AU 3589/21 A AU3589/21 A AU 3589/21A AU 358921 A AU358921 A AU 358921A AU 358921 A AU358921 A AU 358921A
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
AU3589/21A
Inventor
LOOI West Vanburen Streed Chicago. III. U. SA John Wicks and Bernard Darwin Willis both Telephone Engineers
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.)
Automatic Electric Co
Original Assignee
Automatic Electric Co
Filing date
Publication date
Application filed by Automatic Electric Co filed Critical Automatic Electric Co
Publication of AU358921A publication Critical patent/AU358921A/en
Expired legal-status Critical Current

Links

AU3589/21A 1921-09-16 Improvements in or relating' to telephone systems. 6 Expired AU358921A (en)

Publications (1)

Publication Number Publication Date
AU358921A true AU358921A (en) 1922-03-14

Family

ID=

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