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AU113003B2 - Improvements in responding devices for use in electrical signalling systems - Google Patents

Improvements in responding devices for use in electrical signalling systems

Info

Publication number
AU113003B2
AU113003B2 AU458/41A AU45841A AU113003B2 AU 113003 B2 AU113003 B2 AU 113003B2 AU 458/41 A AU458/41 A AU 458/41A AU 45841 A AU45841 A AU 45841A AU 113003 B2 AU113003 B2 AU 113003B2
Authority
AU
Australia
Prior art keywords
signalling systems
responding devices
electrical signalling
electrical
responding
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
AU458/41A
Other versions
AU45841A (en
Inventor
Norton Rushby Philip
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 AU113003B2 publication Critical patent/AU113003B2/en
Publication of AU45841A publication Critical patent/AU45841A/en
Expired legal-status Critical Current

Links

AU458/41A 1939-12-28 Improvements in responding devices for use in electrical signalling systems Expired AU113003B2 (en)

Publications (2)

Publication Number Publication Date
AU113003B2 true AU113003B2 (en) 1941-05-08
AU45841A AU45841A (en) 1941-05-08

Family

ID=

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