AU628342A - Improvements in electrical signalling systems - Google Patents

Improvements in electrical signalling systems

Info

Publication number
AU628342A
AU628342A AU6283/42A AU628342A AU628342A AU 628342 A AU628342 A AU 628342A AU 6283/42 A AU6283/42 A AU 6283/42A AU 628342 A AU628342 A AU 628342A AU 628342 A AU628342 A AU 628342A
Authority
AU
Australia
Prior art keywords
signalling systems
electrical signalling
electrical
systems
signalling
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
AU6283/42A
Other versions
AU117869B2 (en
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 Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
Filing date
Publication date
Application filed by Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd
Application granted granted Critical
Publication of AU628342A publication Critical patent/AU628342A/en
Publication of AU117869B2 publication Critical patent/AU117869B2/en
Expired legal-status Critical Current

Links

AU6283/42A 1942-08-05 Improvements in electrical signalling systems Expired AU117869B2 (en)

Publications (2)

Publication Number Publication Date
AU628342A true AU628342A (en) 1943-12-16
AU117869B2 AU117869B2 (en) 1943-12-16

Family

ID=

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