AU227066B2 - Improvements in or relating to telephone systems employing magnetic drum type registers - Google Patents

Improvements in or relating to telephone systems employing magnetic drum type registers

Info

Publication number
AU227066B2
AU227066B2 AU33399/57A AU3339957A AU227066B2 AU 227066 B2 AU227066 B2 AU 227066B2 AU 33399/57 A AU33399/57 A AU 33399/57A AU 3339957 A AU3339957 A AU 3339957A AU 227066 B2 AU227066 B2 AU 227066B2
Authority
AU
Australia
Prior art keywords
relating
drum type
telephone systems
systems employing
magnetic drum
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
AU33399/57A
Other versions
AU3339957A (en
Inventor
Thomas Baker and John Lawley Smith George
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.)
British Telecommunications Research Ltd
Original Assignee
British Telecommunications Research Ltd
Filing date
Publication date
Application filed by British Telecommunications Research Ltd filed Critical British Telecommunications Research Ltd
Application granted granted Critical
Publication of AU3339957A publication Critical patent/AU3339957A/en
Publication of AU227066B2 publication Critical patent/AU227066B2/en
Expired legal-status Critical Current

Links

AU33399/57A 1957-11-28 Improvements in or relating to telephone systems employing magnetic drum type registers Expired AU227066B2 (en)

Publications (2)

Publication Number Publication Date
AU3339957A AU3339957A (en) 1958-05-29
AU227066B2 true AU227066B2 (en) 1958-05-29

Family

ID=

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