AU2018034A - Improvements in telephone systems - Google Patents

Improvements in telephone systems

Info

Publication number
AU2018034A
AU2018034A AU20180/34A AU2018034A AU2018034A AU 2018034 A AU2018034 A AU 2018034A AU 20180/34 A AU20180/34 A AU 20180/34A AU 2018034 A AU2018034 A AU 2018034A AU 2018034 A AU2018034 A AU 2018034A
Authority
AU
Australia
Prior art keywords
telephone systems
telephone
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
AU20180/34A
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 ELECTRIC Co Ltd
Original Assignee
AUTOMATIC ELECTRIC Co Ltd
Filing date
Publication date
Application filed by AUTOMATIC ELECTRIC Co Ltd filed Critical AUTOMATIC ELECTRIC Co Ltd
Publication of AU2018034A publication Critical patent/AU2018034A/en
Expired legal-status Critical Current

Links

AU20180/34A 1934-11-04 Improvements in telephone systems Expired AU2018034A (en)

Publications (1)

Publication Number Publication Date
AU2018034A true AU2018034A (en) 1935-12-19

Family

ID=

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