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AU3638158A - Improvements in arrangements for providing two-way communication at intermediate points. ona telephone circuit - Google Patents

Improvements in arrangements for providing two-way communication at intermediate points. ona telephone circuit

Info

Publication number
AU3638158A
AU3638158A AU36381/58A AU3638158A AU3638158A AU 3638158 A AU3638158 A AU 3638158A AU 36381/58 A AU36381/58 A AU 36381/58A AU 3638158 A AU3638158 A AU 3638158A AU 3638158 A AU3638158 A AU 3638158A
Authority
AU
Australia
Prior art keywords
ona
arrangements
providing
way communication
intermediate points
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
AU36381/58A
Other versions
AU227689B2 (en
Inventor
Charles Brown Derrick
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.)
J Telephone Manufacturing Co Ltd
Original Assignee
J Telephone Manufacturing Co Ltd
Filing date
Publication date
Application filed by J Telephone Manufacturing Co Ltd filed Critical J Telephone Manufacturing Co Ltd
Application granted granted Critical
Publication of AU3638158A publication Critical patent/AU3638158A/en
Publication of AU227689B2 publication Critical patent/AU227689B2/en
Expired legal-status Critical Current

Links

AU36381/58A 1958-03-25 Improvements in arrangements for providing two-way communication at intermediate points. ona telephone circuit Expired AU227689B2 (en)

Publications (2)

Publication Number Publication Date
AU3638158A true AU3638158A (en) 1958-09-25
AU227689B2 AU227689B2 (en) 1958-09-25

Family

ID=

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