CA498859A - Telephone systems - Google Patents

Telephone systems

Info

Publication number: CA498859A
Authority: CA; Canada
Prior art keywords: telephone systems; telephone; systems
Prior art date: 1953-12-29
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

CA498859A

Other languages

French (fr)

Inventor

W. Jones Roy

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.)

Nortel Networks Ltd

Original Assignee

Northern Electric Co Ltd

Publication date

1953-12-29

1953-12-29 Application granted granted Critical

1953-12-29 Publication of CA498859A publication Critical patent/CA498859A/en

Status Expired legal-status Critical Current

Links

CA498859A Telephone systems Expired CA498859A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA498859T

Publications (1)

Publication Number	Publication Date
CA498859A true CA498859A (en)	1953-12-29

Family

ID=35644300

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA498859A Expired CA498859A (en)			Telephone systems

Country Status (1)

Country	Link
CA (1)	CA498859A (en)

0
- CA CA498859A patent/CA498859A/en not_active Expired

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