AU104057B2 - Improvements in telephone systems - Google Patents

Improvements in telephone systems

Info

Publication number: AU104057B2
Authority: AU; Australia
Prior art keywords: telephone systems; telephone; systems
Prior art date: 1937-09-06
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

AU3834/37A

Other versions

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.)

Automatic Telephone and Electric Co Ltd

Original Assignee

Automatic Telephone and Electric Co Ltd

Filing date

1937-09-06

Publication date

1938-06-09

1937-09-06 Application filed by Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd

1938-06-09 Application granted granted Critical

1938-06-09 Publication of AU104057B2 publication Critical patent/AU104057B2/en

1938-06-09 Publication of AU383437A publication Critical patent/AU383437A/en

Status Expired legal-status Critical Current

Links

AU3834/37A 1937-09-06 Improvements in telephone systems Expired AU104057B2 (en)

Publications (2)

Publication Number	Publication Date
AU104057B2 true AU104057B2 (en)	1938-06-09
AU383437A AU383437A (en)	1938-06-09

Family

ID=

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