CA496550A - Telephone switching system - Google Patents

Telephone switching system

Info

Publication number: CA496550A
Authority: CA; Canada
Prior art keywords: switching system; telephone switching; telephone; switching
Prior art date: 1953-09-29
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

CA496550A

Other languages

French (fr)

Inventor

A. Malthaner William

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.)

AT&T Corp

Original Assignee

Western Electric Co Inc

Publication date

1953-09-29

1953-09-29 Application granted granted Critical

1953-09-29 Publication of CA496550A publication Critical patent/CA496550A/en

Status Expired legal-status Critical Current

Links

CA496550A Telephone switching system Expired CA496550A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA496550T

Publications (1)

Publication Number	Publication Date
CA496550A true CA496550A (en)	1953-09-29

Family

ID=35641975

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA496550A Expired CA496550A (en)			Telephone switching system

Country Status (1)

Country	Link
CA (1)	CA496550A (en)

0
- CA CA496550A patent/CA496550A/en not_active Expired

Similar Documents

Publication	Publication Date	Title
CA496550A (en)	1953-09-29	Telephone switching system
CA496716A (en)	1953-10-06	Switchboard
CA494936A (en)	1953-07-28	Switchboards
CA494844A (en)	1953-07-28	Switching system
CA491719A (en)	1953-03-31	Telephone system
CA493424A (en)	1953-06-02	Telephone system
CA493484A (en)	1953-06-09	Telephone system
CA498170A (en)	1953-12-01	Telegraph switching system
CA498859A (en)	1953-12-29	Telephone systems
CA497641A (en)	1953-11-10	Telephone systems
CA493486A (en)	1953-06-09	Telephone systems
CA493889A (en)	1953-06-23	Telephone systems
CA494014A (en)	1953-06-30	Telephone systems
CA495874A (en)	1953-09-08	Telephone systems
CA496513A (en)	1953-09-29	Telephone systems
CA496514A (en)	1953-09-29	Telephone systems
CA496858A (en)	1953-10-13	Telephone systems
CA497078A (en)	1953-10-20	Telephone systems
CA497326A (en)	1953-11-03	Telephone systems
CA491104A (en)	1953-03-10	Telephone systems
CA497642A (en)	1953-11-10	Telephone systems
CA498036A (en)	1953-12-01	Telephone systems
CA498037A (en)	1953-12-01	Telephone systems
CA498762A (en)	1953-12-29	Telephone systems
CA493483A (en)	1953-06-09	Telephone systems