AU118702B2 - Improvements in telephone systems - Google Patents

Improvements in telephone systems

Info

Publication number: AU118702B2
Authority: AU; Australia
Prior art keywords: telephone systems; telephone; systems
Prior art date: 1943-01-13
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

AU7984/43A

Other versions

AU798443A (en

Inventor

Illinois ES. A Pier Barker

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

1943-01-13

Publication date

1944-07-27

1943-01-13 Application filed by Associated Electric Laboratories Inc filed Critical Associated Electric Laboratories Inc

1944-07-27 Application granted granted Critical

1944-07-27 Publication of AU118702B2 publication Critical patent/AU118702B2/en

1944-07-27 Publication of AU798443A publication Critical patent/AU798443A/en

Status Expired legal-status Critical Current

Links

AU7984/43A 1943-01-13 Improvements in telephone systems Expired AU118702B2 (en)

Publications (2)

Publication Number	Publication Date
AU118702B2 true AU118702B2 (en)	1944-07-27
AU798443A AU798443A (en)	1944-07-27

Family

ID=

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