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AU116872B2 - Improvements in telephone systems - Google Patents

Improvements in telephone systems

Info

Publication number
AU116872B2
AU116872B2 AU3421/41A AU342141A AU116872B2 AU 116872 B2 AU116872 B2 AU 116872B2 AU 3421/41 A AU3421/41 A AU 3421/41A AU 342141 A AU342141 A AU 342141A AU 116872 B2 AU116872 B2 AU 116872B2
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 - Lifetime
Application number
AU3421/41A
Inventor
E. Peterson Seth
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.)
Associated Electric Laboratories Inc
Original Assignee
Associated Electric Laboratories Inc
Filing date
Publication of AU116872B2 publication Critical patent/AU116872B2/en
Application filed by Associated Electric Laboratories Inc filed Critical Associated Electric Laboratories Inc
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

AU3421/41A 1941-10-29 Improvements in telephone systems Expired - Lifetime AU116872B2 (en)

Publications (1)

Publication Number Publication Date
AU116872B2 true AU116872B2 (en)

Family

ID=

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