AU663012B - Improvements in or relating" to telephone systems
- Google Patents
Improvements in or relating" to telephone systems
Info
Publication number
AU663012B
AU663012BAU6630/12AAU663012AAU663012BAU 663012 BAU663012 BAU 663012BAU 6630/12 AAU6630/12 AAU 6630/12AAU 663012 AAU663012 AAU 663012AAU 663012 BAU663012 BAU 663012B
Authority
AU
Australia
Prior art keywords
relating
telephone systems
telephone
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.)
George Blessing Electrical Eugineer 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 AU6630/12ApriorityCriticalpatent/AU663012A/en
Priority claimed from AU6630/12Aexternal-prioritypatent/AU663012A/en
Publication of AU663012BpublicationCriticalpatent/AU663012B/en
Publication of AU663012ApublicationCriticalpatent/AU663012A/en