AU313239A - Improvements in or relating to electrical communication secrecy systems - Google Patents

Improvements in or relating to electrical communication secrecy systems

Info

Publication number
AU313239A
AU313239A AU3132/39A AU313239A AU313239A AU 313239 A AU313239 A AU 313239A AU 3132/39 A AU3132/39 A AU 3132/39A AU 313239 A AU313239 A AU 313239A AU 313239 A AU313239 A AU 313239A
Authority
AU
Australia
Prior art keywords
relating
electrical communication
secrecy systems
communication secrecy
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.)
Expired
Application number
AU3132/39A
Other versions
AU110970B2 (en
Inventor
Pemberton Ross Coon
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 date
Application filed by Standard Telephone and Cables Pty Ltd filed Critical Standard Telephone and Cables Pty Ltd
Application granted granted Critical
Publication of AU313239A publication Critical patent/AU313239A/en
Publication of AU110970B2 publication Critical patent/AU110970B2/en
Expired legal-status Critical Current

Links

AU3132/39A 1939-07-08 Improvements in or relating to electrical communication secrecy systems Expired AU110970B2 (en)

Publications (2)

Publication Number Publication Date
AU313239A true AU313239A (en) 1940-07-18
AU110970B2 AU110970B2 (en) 1940-07-18

Family

ID=

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