AU143205B2 - Improvements relating to telephone systems - Google Patents

Improvements relating to telephone systems

Info

Publication number: AU143205B2
Authority: AU; Australia
Prior art keywords: improvements relating; telephone systems; telephone; relating; systems
Prior art date: 1947-09-30
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

AU15414/47A

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.)

Siemens Brothers and Co Ltd

Original Assignee

Siemens Brothers and Co Ltd

Filing date

1947-09-30

Publication date

1947-10-30

1947-09-30 Application filed by Siemens Brothers and Co Ltd filed Critical Siemens Brothers and Co Ltd

1947-10-30 Application granted granted Critical

1947-10-30 Publication of AU1541447A publication Critical patent/AU1541447A/en

1947-10-30 Publication of AU143205B2 publication Critical patent/AU143205B2/en

Status Expired legal-status Critical Current

Links

AU15414/47A 1947-09-30 Improvements relating to telephone systems Expired AU143205B2 (en)

Publications (2)

Publication Number	Publication Date
AU1541447A AU1541447A (en)	1947-10-30
AU143205B2 true AU143205B2 (en)	1947-10-30

Family

ID=

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