CA461789A - Telephone system - Google Patents

Telephone system

Info

Publication number: CA461789A
Authority: CA; Canada
Prior art keywords: telephone system; telephone
Prior art date: 1949-12-13
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

CA461789A

Other languages

French (fr)

Inventor

S. Rhoads Charles

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

American Telephone and Telegraph Co Inc

Western Electric Co Inc

Publication date

1949-12-13

1949-12-13 Application granted granted Critical

1949-12-13 Publication of CA461789A publication Critical patent/CA461789A/en

Status Expired legal-status Critical Current

Links

CA461789A Telephone system Expired CA461789A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA461789T

Publications (1)

Publication Number	Publication Date
CA461789A true CA461789A (en)	1949-12-13

Family

ID=35591480

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA461789A Expired CA461789A (en)			Telephone system

Country Status (1)

Country	Link
CA (1)	CA461789A (en)

0
- CA CA461789A patent/CA461789A/en not_active Expired

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