AU163453B2 - Improvements in marking circuits for telephone systems - Google Patents

Improvements in marking circuits for telephone systems

Info

Publication number
AU163453B2
AU163453B2 AU15819/53A AU1581953A AU163453B2 AU 163453 B2 AU163453 B2 AU 163453B2 AU 15819/53 A AU15819/53 A AU 15819/53A AU 1581953 A AU1581953 A AU 1581953A AU 163453 B2 AU163453 B2 AU 163453B2
Authority
AU
Australia
Prior art keywords
telephone systems
marking circuits
marking
circuits
telephone
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
AU15819/53A
Other versions
AU1581953A (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.)
Automatic Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
Filing date
Publication date
Application filed by Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd
Application granted granted Critical
Publication of AU1581953A publication Critical patent/AU1581953A/en
Publication of AU163453B2 publication Critical patent/AU163453B2/en
Expired legal-status Critical Current

Links

AU15819/53A 1953-02-03 Improvements in marking circuits for telephone systems Expired AU163453B2 (en)

Publications (2)

Publication Number Publication Date
AU1581953A AU1581953A (en) 1953-04-16
AU163453B2 true AU163453B2 (en) 1953-04-16

Family

ID=

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