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AU209351B2 - Improvements relating to telephone systems - Google Patents
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AU209351B2 - Improvements relating to telephone systems - Google Patents

Improvements relating to telephone systems

Info

Publication number
AU209351B2
AU209351B2 AU5834/54A AU583454A AU209351B2 AU 209351 B2 AU209351 B2 AU 209351B2 AU 5834/54 A AU5834/54 A AU 5834/54A AU 583454 A AU583454 A AU 583454A AU 209351 B2 AU209351 B2 AU 209351B2
Authority
AU
Australia
Prior art keywords
improvements relating
telephone systems
telephone
relating
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
AU5834/54A
Other versions
AU583454A (en
Inventor
Allen Stallworth and Percy William Hicks Frank
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.)
Siemens Brothers and Co Ltd
Original Assignee
Siemens Brothers and Co Ltd
Filing date
Publication date
Application filed by Siemens Brothers and Co Ltd filed Critical Siemens Brothers and Co Ltd
Application granted granted Critical
Publication of AU583454A publication Critical patent/AU583454A/en
Publication of AU209351B2 publication Critical patent/AU209351B2/en
Expired legal-status Critical Current

Links

AU5834/54A 1954-12-29 Improvements relating to telephone systems Expired AU209351B2 (en)

Publications (2)

Publication Number Publication Date
AU583454A AU583454A (en) 1955-06-30
AU209351B2 true AU209351B2 (en) 1955-06-30

Family

ID=

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