CA568131A - Systemes de telephone a postes groupes - Google Patents

Systemes de telephone a postes groupes

Info

Publication number: CA568131A
Authority: CA; Canada
Prior art keywords: telephone systems; line telephone; party line; party; systems
Prior art date: 1958-12-30
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

CA568131A

Other languages

English (en)

Inventor

Barrow Norman

M. Robert Beatrice

G. Edwards Harold

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

1958-12-30

1958-12-30 Application granted granted Critical

1958-12-30 Publication of CA568131A publication Critical patent/CA568131A/fr

Status Expired legal-status Critical Current

Links

CA568131A Systemes de telephone a postes groupes Expired CA568131A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA568131T

Publications (1)

Publication Number	Publication Date
CA568131A true CA568131A (fr)	1958-12-30

Family

ID=35740659

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA568131A Expired CA568131A (fr)			Systemes de telephone a postes groupes

Country Status (1)

Country	Link
CA (1)	CA568131A (fr)

0
- CA CA568131A patent/CA568131A/fr not_active Expired

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