AU663312B - Improvements in or relating to signalling' systems
- Google Patents
Improvements in or relating to signalling' systems
Info
Publication number
AU663312B
AU663312BAU6633/12AAU663312AAU663312BAU 663312 BAU663312 BAU 663312BAU 6633/12 AAU6633/12 AAU 6633/12AAU 663312 AAU663312 AAU 663312AAU 663312 BAU663312 BAU 663312B
Authority
AU
Australia
Prior art keywords
signalling
relating
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.)
Atwater Hui Lt Electrical Engineer Looi West Vanburen Streed Chicago Illinois U Sa John
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 Electric Co
Original Assignee
Automatic Electric Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Automatic Electric CofiledCriticalAutomatic Electric Co
Priority to AU6633/12ApriorityCriticalpatent/AU663312B/en
Publication of AU663312ApublicationCriticalpatent/AU663312A/en
Publication of AU663312BpublicationCriticalpatent/AU663312B/en