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AU153984B2 - Improvements in or relating to automatic signalling systems - Google Patents
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AU153984B2 - Improvements in or relating to automatic signalling systems - Google Patents

Improvements in or relating to automatic signalling systems

Info

Publication number
AU153984B2
AU153984B2 AU6082/51A AU608251A AU153984B2 AU 153984 B2 AU153984 B2 AU 153984B2 AU 6082/51 A AU6082/51 A AU 6082/51A AU 608251 A AU608251 A AU 608251A AU 153984 B2 AU153984 B2 AU 153984B2
Authority
AU
Australia
Prior art keywords
relating
signalling systems
automatic signalling
automatic
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
AU6082/51A
Other versions
AU608251A (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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of AU608251A publication Critical patent/AU608251A/en
Publication of AU153984B2 publication Critical patent/AU153984B2/en
Expired legal-status Critical Current

Links

AU6082/51A 1951-11-05 Improvements in or relating to automatic signalling systems Expired AU153984B2 (en)

Publications (2)

Publication Number Publication Date
AU608251A AU608251A (en) 1952-01-10
AU153984B2 true AU153984B2 (en) 1952-01-10

Family

ID=

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