CA252001A - Central telephonique - Google Patents

Central telephonique

Info

Publication number: CA252001A
Authority: CA; Canada
Prior art keywords: telephone exchange; telephone; exchange
Prior art date: 1925-07-21
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

CA252001A

Other languages

English (en)

Inventor

Bertie Johnson Benjamin

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.)

Relay Automatic Telephone Company Ltd

Original Assignee

Relay Automatic Telephone Company Ltd

Publication date

1925-07-21

1925-07-21 Application granted granted Critical

1925-07-21 Publication of CA252001A publication Critical patent/CA252001A/fr

Status Expired legal-status Critical Current

Links

CA252001A Central telephonique Expired CA252001A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA252001T

Publications (1)

Publication Number	Publication Date
CA252001A true CA252001A (fr)	1925-07-21

Family

ID=35158975

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA252001A Expired CA252001A (fr)			Central telephonique

Country Status (1)

Country	Link
CA (1)	CA252001A (fr)

0
- CA CA252001A patent/CA252001A/fr not_active Expired

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