CA325840A - Systeme de central telephonique - Google Patents

Systeme de central telephonique

Info

Publication number: CA325840A
Authority: CA; Canada
Prior art keywords: exchange system; telephone exchange; telephone; exchange
Prior art date: 1932-09-06
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

CA325840A

Other languages

English (en)

Inventor

Balli Mcdavitt Marcellus

Charles Schwantes Paul

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

1932-09-06

1932-09-06 Application granted granted Critical

1932-09-06 Publication of CA325840A publication Critical patent/CA325840A/fr

Status Expired legal-status Critical Current

Links

CA325840A Systeme de central telephonique Expired CA325840A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA325840T

Publications (1)

Publication Number	Publication Date
CA325840A true CA325840A (fr)	1932-09-06

Family

ID=35288210

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA325840A Expired CA325840A (fr)			Systeme de central telephonique

Country Status (1)

Country	Link
CA (1)	CA325840A (fr)

0
- CA CA325840A patent/CA325840A/fr not_active Expired

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