AU201046B2 - Improvements in or relating to electrical signalling apparatus - Google Patents

Improvements in or relating to electrical signalling apparatus

Info

Publication number
AU201046B2
AU201046B2 AU2043/54A AU204354A AU201046B2 AU 201046 B2 AU201046 B2 AU 201046B2 AU 2043/54 A AU2043/54 A AU 2043/54A AU 204354 A AU204354 A AU 204354A AU 201046 B2 AU201046 B2 AU 201046B2
Authority
AU
Australia
Prior art keywords
relating
signalling apparatus
electrical signalling
electrical
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
AU2043/54A
Other versions
AU204354A (en
Inventor
Otto Felix and Herbert Cyril Spencer Michael
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.)
British Telecommunications Research Ltd
Original Assignee
British Telecommunications Research Ltd
Filing date
Publication date
Application filed by British Telecommunications Research Ltd filed Critical British Telecommunications Research Ltd
Application granted granted Critical
Publication of AU201046B2 publication Critical patent/AU201046B2/en
Publication of AU204354A publication Critical patent/AU204354A/en
Expired legal-status Critical Current

Links

AU2043/54A 1954-07-29 Improvements in or relating to electrical signalling apparatus Expired AU201046B2 (en)

Publications (2)

Publication Number Publication Date
AU201046B2 true AU201046B2 (en) 1955-02-03
AU204354A AU204354A (en) 1955-02-03

Family

ID=

Similar Documents

Publication Publication Date Title
AU201046B2 (en) Improvements in or relating to electrical signalling apparatus
AU204354A (en) Improvements in or relating to electrical signalling apparatus
AU203379B2 (en) Improvements in or relating to courseindicating apparatus
AU201562B2 (en) Improvements in or relating to electrical signalling systems
AU202358B2 (en) Improvements in or relating to electrical signalling systems
AU204931B2 (en) Improvements in or relating to electrical signalling systems
AU204932B2 (en) Improvements in or relating to electrical signalling systems
AU204930B2 (en) Improvements in or relating to electrical signalling systems
AU203544B2 (en) Improvements in or relating to electric signalling systems
AU163442B2 (en) Improvements in or relating to water-softening apparatus
AU344554A (en) Improvements in or relating to courseindicating apparatus
AU162462B2 (en) Improvements in or relating to extrusion apparatus
AU355254A (en) Improvements in or relating to electrical signalling systems
AU355354A (en) Improvements in or relating to electrical signalling systems
AU520454A (en) Improvements in or relating to electrical signalling systems
AU355154A (en) Improvements in or relating to electrical signalling systems
AU313854A (en) Improvements in or relating to electrical signalling systems
AU202157B2 (en) Improvements in or relating to electrical deicing equipment
AU202933B2 (en) Improvements in or relating to electrical selection equipment
AU206105B2 (en) Improvements in or relating to electrical connections
AU90654A (en) Improvements in or relating to electric signalling systems
AU166875B2 (en) Improvements in or relating to electromagnetic apparatus
AU163649B2 (en) Improvements in or relating to brake apparatus
AU164942B2 (en) Improvements in or relating to electrical calculating equipment
AU203061B2 (en) Improvements in or relating to stabilizing equipment