AU397021A - Improvements in or relating to automatic or semiautomatic telephone systems - Google Patents

Improvements in or relating to automatic or semiautomatic telephone systems

Info

Publication number
AU397021A
AU397021A AU3970/21A AU397021A AU397021A AU 397021 A AU397021 A AU 397021A AU 3970/21 A AU3970/21 A AU 3970/21A AU 397021 A AU397021 A AU 397021A AU 397021 A AU397021 A AU 397021A
Authority
AU
Australia
Prior art keywords
relating
automatic
telephone systems
semiautomatic telephone
semiautomatic
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
AU3970/21A
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.)
Individual
Original Assignee
Individual
Publication date
Publication of AU397021A publication Critical patent/AU397021A/en
Expired legal-status Critical Current

Links

AU3970/21A Improvements in or relating to automatic or semiautomatic telephone systems Expired AU397021A (en)

Publications (1)

Publication Number Publication Date
AU397021A true AU397021A (en) 1922-01-19

Family

ID=

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