GB109815A - Telephone Exchange Systems. - Google Patents

Telephone Exchange Systems.

Info

Publication number: GB109815A
Authority: GB; United Kingdom
Prior art keywords: telephone exchange; exchange systems; systems; telephone; exchange
Prior art date: 1916-09-22
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

GB1354117A

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.)

Western Electric Co Ltd Great Britain

AT&T Corp

Original Assignee

Western Electric Co Ltd Great Britain

Western Electric Co Inc

Priority date (The priority date 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 date listed.)

1916-09-22

Filing date

1917-09-20

Publication date

1918-09-19

1917-09-20 Application filed by Western Electric Co Ltd Great Britain, Western Electric Co Inc filed Critical Western Electric Co Ltd Great Britain

1918-09-19 Publication of GB109815A publication Critical patent/GB109815A/en

Status Expired legal-status Critical Current

Links

GB1354117A 1916-09-22 1917-09-20 Telephone Exchange Systems. Expired GB109815A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US109815XA	1916-09-22	1916-09-22

Publications (1)

Publication Number	Publication Date
GB109815A true GB109815A (en)	1918-09-19

Family

ID=32296182

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB1354117A Expired GB109815A (en)	1916-09-22	1917-09-20	Telephone Exchange Systems.

Country Status (1)

Country	Link
GB (1)	GB109815A (en)

1917
- 1917-09-20 GB GB1354117A patent/GB109815A/en not_active Expired

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