AU103169B2 - Improvements relating to telephone systems - Google Patents

Improvements relating to telephone systems

Info

Publication number: AU103169B2
Authority: AU; Australia
Prior art keywords: improvements relating; telephone systems; telephone; relating; systems
Prior art date: 1937-02-25
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

AU776/37A

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.)

Siemens Brothers and Co Ltd

Original Assignee

Siemens Brothers and Co Ltd

Filing date

1937-02-25

Publication date

1938-02-17

1937-02-25 Application filed by Siemens Brothers and Co Ltd filed Critical Siemens Brothers and Co Ltd

1938-02-17 Application granted granted Critical

1938-02-17 Publication of AU103169B2 publication Critical patent/AU103169B2/en

1938-02-17 Publication of AU77637A publication Critical patent/AU77637A/en

Status Expired legal-status Critical Current

Links

AU776/37A 1937-02-25 Improvements relating to telephone systems Expired AU103169B2 (en)

Publications (2)

Publication Number	Publication Date
AU103169B2 true AU103169B2 (en)	1938-02-17
AU77637A AU77637A (en)	1938-02-17

Family

ID=

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