CA402413A - Systeme de central telegraphique - Google Patents

Systeme de central telegraphique

Info

Publication number: CA402413A
Authority: CA; Canada
Prior art keywords: exchange system; telegraph exchange; telegraph; exchange
Prior art date: 1942-01-20
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

CA402413A

Other languages

English (en)

Inventor

Rupert Wheeler Evan

Hoover Ray

Frederick Dirkes Robert

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.)

Western Union Telegraph Co

Original Assignee

Western Union Telegraph Co

Publication date

1942-01-20

1942-01-20 Application granted granted Critical

1942-01-20 Publication of CA402413A publication Critical patent/CA402413A/fr

Status Expired legal-status Critical Current

Links

CA402413A Systeme de central telegraphique Expired CA402413A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA402413T

Publications (1)

Publication Number	Publication Date
CA402413A true CA402413A (fr)	1942-01-20

Family

ID=35412859

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA402413A Expired CA402413A (fr)			Systeme de central telegraphique

Country Status (1)

Country	Link
CA (1)	CA402413A (fr)

0
- CA CA402413A patent/CA402413A/fr not_active Expired

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