Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456
AU133492B2 - Improvements relating to apparatus for wireless signalling systems - Google Patents
[go: Go Back, main page]

AU133492B2 - Improvements relating to apparatus for wireless signalling systems - Google Patents

Improvements relating to apparatus for wireless signalling systems

Info

Publication number
AU133492B2
AU133492B2 AU9883/47A AU988347A AU133492B2 AU 133492 B2 AU133492 B2 AU 133492B2 AU 9883/47 A AU9883/47 A AU 9883/47A AU 988347 A AU988347 A AU 988347A AU 133492 B2 AU133492 B2 AU 133492B2
Authority
AU
Australia
Prior art keywords
improvements relating
signalling systems
wireless signalling
wireless
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
AU9883/47A
Other versions
AU988347A (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.)
Ferranti International PLC
Original Assignee
Ferranti PLC
Filing date
Publication date
Application filed by Ferranti PLC filed Critical Ferranti PLC
Application granted granted Critical
Publication of AU988347A publication Critical patent/AU988347A/en
Publication of AU133492B2 publication Critical patent/AU133492B2/en
Expired legal-status Critical Current

Links

AU9883/47A 1947-02-02 Improvements relating to apparatus for wireless signalling systems Expired AU133492B2 (en)

Publications (2)

Publication Number Publication Date
AU988347A AU988347A (en) 1947-03-13
AU133492B2 true AU133492B2 (en) 1947-03-13

Family

ID=

Similar Documents

Publication Publication Date Title
AU133492B2 (en) Improvements relating to apparatus for wireless signalling systems
AU138261B2 (en) Improvements relating to apparatus for wireless signalling systems
AU988247A (en) Improvements relating to apparatus for wireless signalling systems
AU988347A (en) Improvements relating to apparatus for wireless signalling systems
AU133007B2 (en) Improvements relating to apparatus for wireless signalling systems
AU849146A (en) Improvements relating to apparatus for wireless signalling systems
AU137914B2 (en) Improvements relating to wired radio signalling systems
CA452403A (en) Apparatus for communication systems
CA443440A (en) Signalling system
CA439944A (en) Signalling system
CA440968A (en) Signalling system
AU141016B2 (en) Signalling system
AU1032747A (en) Improvements relating to wired radio signalling systems
CA439362A (en) Control apparatus for signalling apparatus
CA444964A (en) Multi-channel radio signalling system
CA442113A (en) Railway signalling apparatus
CA443853A (en) Radio signalling means for aviation trainer
CA440159A (en) Apparatus for communication systems
AU1493147A (en) Signalling system
CA440232A (en) Signalling unit
AU138662B2 (en) Improvements relating to railway signalling systems
CA432251A (en) Radio signalling apparatus
CA443116A (en) Counting relay signalling apparatus
CA440153A (en) Wireless receiving system
CA445901A (en) Sterophonic radio system