CA327142A - Systeme de central telephonique - Google Patents

Systeme de central telephonique

Info

Publication number: CA327142A
Authority: CA; Canada
Prior art keywords: exchange system; telephone exchange; telephone; exchange
Prior art date: 1932-10-25
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

CA327142A

Other languages

English (en)

Inventor

Frank Porter Leslie

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 Inc

Original Assignee

Western Electric Co Inc

Publication date

1932-10-25

1932-10-25 Application granted granted Critical

1932-10-25 Publication of CA327142A publication Critical patent/CA327142A/fr

Status Expired legal-status Critical Current

Links

CA327142A Systeme de central telephonique Expired CA327142A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA327142T

Publications (1)

Publication Number	Publication Date
CA327142A true CA327142A (fr)	1932-10-25

Family

ID=35289512

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA327142A Expired CA327142A (fr)			Systeme de central telephonique

Country Status (1)

Country	Link
CA (1)	CA327142A (fr)

0
- CA CA327142A patent/CA327142A/fr not_active Expired

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