AU1519120A - Improvements in or relating to automatic or semiautomatic telephone systems - Google Patents

Improvements in or relating to automatic or semiautomatic telephone systems

Info

Publication number
AU1519120A
AU1519120A AU15191/20A AU1519120A AU1519120A AU 1519120 A AU1519120 A AU 1519120A AU 15191/20 A AU15191/20 A AU 15191/20A AU 1519120 A AU1519120 A AU 1519120A AU 1519120 A AU1519120 A AU 1519120A
Authority
AU
Australia
Prior art keywords
relating
automatic
telephone systems
semiautomatic telephone
semiautomatic
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
AU15191/20A
Inventor
Telephone Engineer LOOI West Vanburen Streed Chicago III II. SA Emil Jacobsen
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 AU1519120A publication Critical patent/AU1519120A/en
Expired legal-status Critical Current

Links

AU15191/20A 1920-04-16 Improvements in or relating to automatic or semiautomatic telephone systems Expired AU1519120A (en)

Publications (1)

Publication Number Publication Date
AU1519120A true AU1519120A (en) 1920-09-28

Family

ID=

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