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.)
Eric Bertram Ireland and Leslie James Browell John Henry Keating
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 Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
Publication date
Application grantedgrantedCritical
Publication of AU2838957ApublicationCriticalpatent/AU2838957A/en
Publication of AU217490B2publicationCriticalpatent/AU217490B2/en