CA245448A - Systeme telephonometrique - Google Patents

Systeme telephonometrique

Info

Publication number: CA245448A
Authority: CA; Canada
Prior art keywords: telephone system; measured service; service telephone; measured; telephone
Prior art date: 1924-12-16
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

CA245448A

Other languages

English (en)

Inventor

Erickson John

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

1924-12-16

1924-12-16 Application granted granted Critical

1924-12-16 Publication of CA245448A publication Critical patent/CA245448A/fr

Status Expired legal-status Critical Current

Links

CA245448A Systeme telephonometrique Expired CA245448A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA245448T

Publications (1)

Publication Number	Publication Date
CA245448A true CA245448A (fr)	1924-12-16

Family

ID=35152423

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA245448A Expired CA245448A (fr)			Systeme telephonometrique

Country Status (1)

Country	Link
CA (1)	CA245448A (fr)

0
- CA CA245448A patent/CA245448A/fr not_active Expired

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