AU511522A - Improvements in or relating to telephone systems - Google Patents

Improvements in or relating to telephone systems

Info

Publication number
AU511522A
AU511522A AU5115/22A AU511522A AU511522A AU 511522 A AU511522 A AU 511522A AU 5115/22 A AU5115/22 A AU 5115/22A AU 511522 A AU511522 A AU 511522A AU 511522 A AU511522 A AU 511522A
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
AU5115/22A
Inventor
Engineer LOOI West Vanburen Streed Chicago III U. SA Rodney Guy Richardson
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 Compan Y
Original Assignee
Automatic Electric Compan Y
Filing date
Publication date
Application filed by Automatic Electric Compan Y filed Critical Automatic Electric Compan Y
Publication of AU511522A publication Critical patent/AU511522A/en
Expired legal-status Critical Current

Links

AU5115/22A 1922-01-05 Improvements in or relating to telephone systems Expired AU511522A (en)

Publications (1)

Publication Number Publication Date
AU511522A true AU511522A (en) 1922-05-16

Family

ID=

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