CA493919A - Systemes automatiques de telephone - Google Patents

Systemes automatiques de telephone

Info

Publication number: CA493919A
Authority: CA; Canada
Prior art keywords: telephone systems; automatic telephone; automatic; systems; telephone
Prior art date: 1953-06-23
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

Other languages

Inventor

A. Christian David

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.)

Siemens Brothers and Co Ltd

Original Assignee

Siemens Brothers and Co Ltd

Publication date

1953-06-23

1953-06-23 Application granted granted Critical

1953-06-23 Publication of CA493919A publication Critical patent/CA493919A/fr

Status Expired legal-status Critical Current

Links

CA493919D Systemes automatiques de telephone Expired CA493919A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA493919T

Publications (1)

Publication Number	Publication Date
CA493919A true CA493919A (fr)	1953-06-23

Family

ID=35639312

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA493919D Expired CA493919A (fr)			Systemes automatiques de telephone

Country Status (1)

Country	Link
CA (1)	CA493919A (fr)

0
- CA CA493919D patent/CA493919A/fr not_active Expired

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