AU131328B2 - Secrecy systems for telegraph circuits - Google Patents

Secrecy systems for telegraph circuits

Info

Publication number
AU131328B2
AU131328B2 AU22557/45A AU2255745A AU131328B2 AU 131328 B2 AU131328 B2 AU 131328B2 AU 22557/45 A AU22557/45 A AU 22557/45A AU 2255745 A AU2255745 A AU 2255745A AU 131328 B2 AU131328 B2 AU 131328B2
Authority
AU
Australia
Prior art keywords
telegraph circuits
secrecy systems
secrecy
systems
telegraph
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
AU22557/45A
Other versions
AU2255745A (en
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.)
Amalgamated Wireless Australasia Ltd
Original Assignee
Amalgamated Wireless Australasia Ltd
Filing date
Publication date
Application filed by Amalgamated Wireless Australasia Ltd filed Critical Amalgamated Wireless Australasia Ltd
Application granted granted Critical
Publication of AU131328B2 publication Critical patent/AU131328B2/en
Publication of AU2255745A publication Critical patent/AU2255745A/en
Expired legal-status Critical Current

Links

AU22557/45A 1945-08-14 Secrecy systems for telegraph circuits Expired AU131328B2 (en)

Publications (2)

Publication Number Publication Date
AU131328B2 true AU131328B2 (en) 1947-10-30
AU2255745A AU2255745A (en) 1947-10-30

Family

ID=

Similar Documents

Publication Publication Date Title
AU131328B2 (en) Secrecy systems for telegraph circuits
AU2255745A (en) Secrecy systems for telegraph circuits
CA429860A (en) Telegraph switching system
CA425420A (en) Telegraph switching system
CA430580A (en) Telegraph switching system
CA428868A (en) Printing telegraph system
CA429610A (en) Multiplex telegraph system
CA428150A (en) Multiplex telegraph system
AU129310B2 (en) Telegraph transmission system
AU126492B2 (en) Communication systems
AU128157B2 (en) Communication systems
AU129301B2 (en) Improvements ina secret signaling system
AU129779B2 (en) Discriminator circuits
AU126785B2 (en) Discriminator circuits
CA426578A (en) Receiving apparatus for communication systems
AU127748B2 (en) Telecommunication systems
AU134298B2 (en) Telecommunication systems
AU125872B2 (en) k Transmission systems
CA427094A (en) Telephone system
CA426768A (en) Telephone system
CA427100A (en) Telephone system
CA426766A (en) Telephone system
CA427096A (en) Telephone system
CA426769A (en) Telephone system
CA426770A (en) Telephone system