CA578530A - Systeme de telephone automatique - Google Patents

Systeme de telephone automatique

Info

Publication number: CA578530A
Authority: CA; Canada
Prior art keywords: telephone system; automatic telephone; automatic; telephone
Prior art date: 1959-06-30
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

CA578530A

Other languages

English (en)

Inventor

M. Blackhall James

Oxaal Arne

J. Bergman Walter

H. Blashfield William

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.)

North Electric Co

Original Assignee

North Electric Co

Publication date

1959-06-30

1959-06-30 Application granted granted Critical

1959-06-30 Publication of CA578530A publication Critical patent/CA578530A/fr

Status Expired legal-status Critical Current

Links

CA578530A Systeme de telephone automatique Expired CA578530A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA578530T

Publications (1)

Publication Number	Publication Date
CA578530A true CA578530A (fr)	1959-06-30

Family

ID=35754401

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA578530A Expired CA578530A (fr)			Systeme de telephone automatique

Country Status (1)

Country	Link
CA (1)	CA578530A (fr)

0
- CA CA578530A patent/CA578530A/fr not_active Expired

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