CA512082A - Automatic telephone exchange system - Google Patents

Automatic telephone exchange system

Info

Publication number: CA512082A
Authority: CA; Canada
Prior art keywords: exchange system; telephone exchange; automatic telephone; automatic; telephone
Prior art date: 1955-04-19
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

CA512082A

Other languages

French (fr)

Inventor

H. Voss John

Original Assignee

Northern Electric Co Ltd

Publication date

1955-04-19

1955-04-19 Application granted granted Critical

1955-04-19 Publication of CA512082A publication Critical patent/CA512082A/en

Status Expired legal-status Critical Current

Links

CA512082A Automatic telephone exchange system Expired CA512082A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA512082T

Publications (1)

Publication Number	Publication Date
CA512082A true CA512082A (en)	1955-04-19

Family

ID=35663154

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA512082A Expired CA512082A (en)			Automatic telephone exchange system

Country Status (1)

Country	Link
CA (1)	CA512082A (en)

0
- CA CA512082A patent/CA512082A/en not_active Expired

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