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AU109451B2 - Improvements in or relating to carrier wave telephony systems - Google Patents

Improvements in or relating to carrier wave telephony systems

Info

Publication number
AU109451B2
AU109451B2 AU5661/38A AU566138A AU109451B2 AU 109451 B2 AU109451 B2 AU 109451B2 AU 5661/38 A AU5661/38 A AU 5661/38A AU 566138 A AU566138 A AU 566138A AU 109451 B2 AU109451 B2 AU 109451B2
Authority
AU
Australia
Prior art keywords
relating
carrier wave
telephony systems
wave telephony
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
AU5661/38A
Other versions
AU566138A (en
Inventor
Samuel Skillman Thomas
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of AU109451B2 publication Critical patent/AU109451B2/en
Publication of AU566138A publication Critical patent/AU566138A/en
Expired legal-status Critical Current

Links

AU5661/38A 1938-12-23 Improvements in or relating to carrier wave telephony systems Expired AU109451B2 (en)

Publications (2)

Publication Number Publication Date
AU109451B2 true AU109451B2 (en) 1940-01-11
AU566138A AU566138A (en) 1940-01-11

Family

ID=

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