CA234541A - Telephone exchange - Google Patents

Telephone exchange

Info

Publication number: CA234541A
Authority: CA; Canada
Prior art keywords: telephone exchange; telephone; exchange
Prior art date: 1923-09-25
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

CA234541A

Other languages

French (fr)

Inventor

A. Lundquist Frank

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.)

HENRY S CONRAD

Original Assignee

HENRY S CONRAD

Publication date

1923-09-25

1923-09-25 Application granted granted Critical

1923-09-25 Publication of CA234541A publication Critical patent/CA234541A/en

Status Expired legal-status Critical Current

Links

CA234541A Telephone exchange Expired CA234541A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA234541T

Publications (1)

Publication Number	Publication Date
CA234541A true CA234541A (en)	1923-09-25

Family

ID=35131915

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA234541A Expired CA234541A (en)			Telephone exchange

Country Status (1)

Country	Link
CA (1)	CA234541A (en)

0
- CA CA234541A patent/CA234541A/en not_active Expired

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