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AU113393B2 - Improvements relating to telephone and like signalling systems - Google Patents
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AU113393B2 - Improvements relating to telephone and like signalling systems - Google Patents

Improvements relating to telephone and like signalling systems

Info

Publication number
AU113393B2
AU113393B2 AU3914/40A AU391440A AU113393B2 AU 113393 B2 AU113393 B2 AU 113393B2 AU 3914/40 A AU3914/40 A AU 3914/40A AU 391440 A AU391440 A AU 391440A AU 113393 B2 AU113393 B2 AU 113393B2
Authority
AU
Australia
Prior art keywords
telephone
improvements relating
signalling systems
signalling
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
AU3914/40A
Other versions
AU391440A (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.)
Siemens Brothers and Co Ltd
Original Assignee
Siemens Brothers and Co Ltd
Filing date
Publication date
Application filed by Siemens Brothers and Co Ltd filed Critical Siemens Brothers and Co Ltd
Application granted granted Critical
Publication of AU391440A publication Critical patent/AU391440A/en
Publication of AU113393B2 publication Critical patent/AU113393B2/en
Expired legal-status Critical Current

Links

AU3914/40A 1940-11-05 Improvements relating to telephone and like signalling systems Expired AU113393B2 (en)

Publications (2)

Publication Number Publication Date
AU391440A AU391440A (en) 1941-07-17
AU113393B2 true AU113393B2 (en) 1941-07-17

Family

ID=

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