AU3484850A - Improvements in duplex telephone transmission systems - Google Patents

Improvements in duplex telephone transmission systems

Info

Publication number
AU3484850A
AU3484850A AU34848/50A AU3484850A AU3484850A AU 3484850 A AU3484850 A AU 3484850A AU 34848/50 A AU34848/50 A AU 34848/50A AU 3484850 A AU3484850 A AU 3484850A AU 3484850 A AU3484850 A AU 3484850A
Authority
AU
Australia
Prior art keywords
transmission systems
telephone transmission
duplex telephone
duplex
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
AU34848/50A
Other versions
AU149921B2 (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.)
General Electric Co
Original Assignee
General Electric Co
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of AU3484850A publication Critical patent/AU3484850A/en
Publication of AU149921B2 publication Critical patent/AU149921B2/en
Expired legal-status Critical Current

Links

AU34848/50A 1950-06-05 Improvements in duplex telephone transmission systems Expired AU149921B2 (en)

Publications (2)

Publication Number Publication Date
AU3484850A true AU3484850A (en) 1950-08-10
AU149921B2 AU149921B2 (en) 1950-08-10

Family

ID=

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