CA340821A - Systeme de central telephonique - Google Patents

Systeme de central telephonique

Info

Publication number: CA340821A
Authority: CA; Canada
Prior art keywords: exchange system; telephone exchange; telephone; exchange
Prior art date: 1934-04-10
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

CA340821A

Other languages

English (en)

Inventor

John Busch Aloysius

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

1934-04-10

1934-04-10 Application granted granted Critical

1934-04-10 Publication of CA340821A publication Critical patent/CA340821A/fr

Status Expired legal-status Critical Current

Links

CA340821A Systeme de central telephonique Expired CA340821A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA340821T

Publications (1)

Publication Number	Publication Date
CA340821A true CA340821A (fr)	1934-04-10

Family

ID=35312095

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA340821A Expired CA340821A (fr)			Systeme de central telephonique

Country Status (1)

Country	Link
CA (1)	CA340821A (fr)

0
- CA CA340821A patent/CA340821A/fr not_active Expired

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