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AU2954830A - Improvements in or relating to telephone circuits - Google Patents

Improvements in or relating to telephone circuits

Info

Publication number
AU2954830A
AU2954830A AU29548/30A AU2954830A AU2954830A AU 2954830 A AU2954830 A AU 2954830A AU 29548/30 A AU29548/30 A AU 29548/30A AU 2954830 A AU2954830 A AU 2954830A AU 2954830 A AU2954830 A AU 2954830A
Authority
AU
Australia
Prior art keywords
relating
telephone circuits
telephone
circuits
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
AU29548/30A
Inventor
Robert Kahl Arthur
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.)
COVENTRY AUTOMATIC TELEPHONES Ltd
Original Assignee
COVENTRY AUTOMATIC TELEPHONES Ltd
Filing date
Publication date
Application filed by COVENTRY AUTOMATIC TELEPHONES Ltd filed Critical COVENTRY AUTOMATIC TELEPHONES Ltd
Publication of AU2954830A publication Critical patent/AU2954830A/en
Expired legal-status Critical Current

Links

AU29548/30A 1930-10-14 Improvements in or relating to telephone circuits Expired AU2954830A (en)

Publications (1)

Publication Number Publication Date
AU2954830A true AU2954830A (en) 1931-03-05

Family

ID=

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