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 - Lifetime
Application number
AU27455/57A
Inventor
Harold Downing and Donald James Joyce George Percy Thwaites
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.)
Nokia Services Ltd
Original Assignee
Standard Telephone and Cables Pty Ltd
Filing date
Publication of AU214212B2publicationCriticalpatent/AU214212B2/en
Application filed by Standard Telephone and Cables Pty LtdfiledCriticalStandard Telephone and Cables Pty Ltd