AU922013A - Telephone exchange system - Google Patents

Telephone exchange system

Info

Publication number: AU922013A
Authority: AU; Australia
Prior art keywords: exchange system; telephone exchange; telephone; exchange
Prior art date: 1913-05-28
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

AU9220/13A

Other versions

AU922013B (en

Inventor

Herd Corwin Elmer

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.)

Individual

Original Assignee

Individual

Filing date

1913-05-28

Publication date

1914-06-09

1913-05-28 Application filed by Individual filed Critical Individual

1913-05-28 Priority to AU9220/13A priority Critical patent/AU922013A/en

1914-06-09 Publication of AU922013B publication Critical patent/AU922013B/en

1914-06-09 Publication of AU922013A publication Critical patent/AU922013A/en

Status Expired legal-status Critical Current

Links

AU9220/13A 1913-05-28 Telephone exchange system Expired AU922013A (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AU9220/13A AU922013A (en)		1913-05-28	Telephone exchange system

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
AU9220/13A AU922013A (en)		1913-05-28	Telephone exchange system

Publications (2)

Publication Number	Publication Date
AU922013B AU922013B (en)	1914-06-09
AU922013A true AU922013A (en)	1914-06-09

Family

ID=

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