AU594722A - Improvements in automatic and semiautomatic telephone systems - Google Patents

Improvements in automatic and semiautomatic telephone systems

Info

Publication number
AU594722A
AU594722A AU5947/22A AU594722A AU594722A AU 594722 A AU594722 A AU 594722A AU 5947/22 A AU5947/22 A AU 5947/22A AU 594722 A AU594722 A AU 594722A AU 594722 A AU594722 A AU 594722A
Authority
AU
Australia
Prior art keywords
automatic
telephone systems
semiautomatic telephone
semiautomatic
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
AU5947/22A
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.)
Relay Automatic Telephone Company Ltd
Original Assignee
Relay Automatic Telephone Company Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Relay Automatic Telephone Company Ltd filed Critical Relay Automatic Telephone Company Ltd
Publication of AU594722A publication Critical patent/AU594722A/en
Expired legal-status Critical Current

Links

AU5947/22A 1921-03-07 1922-03-07 Improvements in automatic and semiautomatic telephone systems Expired AU594722A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB7330/21 1921-03-07

Publications (1)

Publication Number Publication Date
AU594722A true AU594722A (en) 1922-03-08

Family

ID=

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