AU1621834A - Improvements in telephone systems - Google Patents

Improvements in telephone systems

Info

Publication number: AU1621834A
Authority: AU; Australia
Prior art keywords: telephone systems; telephone; systems
Prior art date: 1934-02-03
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

AU16218/34A

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.)

Associated Electric Laboratories Inc

Original Assignee

Associated Electric Laboratories Inc

Filing date

1934-02-03

Publication date

1935-03-21

1934-02-03 Application filed by Associated Electric Laboratories Inc filed Critical Associated Electric Laboratories Inc

1935-03-21 Publication of AU1621834A publication Critical patent/AU1621834A/en

Status Expired legal-status Critical Current

Links

AU16218/34A 1934-02-03 Improvements in telephone systems Expired AU1621834A (en)

Publications (1)

Publication Number	Publication Date
AU1621834A true AU1621834A (en)	1935-03-21

Family

ID=

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