CA321470A - Dispositif d'appels de telephone - Google Patents

Dispositif d'appels de telephone

Info

Publication number: CA321470A
Authority: CA; Canada
Prior art keywords: calling device; telephone calling; telephone; calling
Prior art date: 1932-04-12
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

CA321470A

Other languages

English (en)

Inventor

Frederick Obergfell Herbert

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

1932-04-12

1932-04-12 Application granted granted Critical

1932-04-12 Publication of CA321470A publication Critical patent/CA321470A/fr

Status Expired legal-status Critical Current

Links

CA321470A Dispositif d'appels de telephone Expired CA321470A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA321470T

Publications (1)

Publication Number	Publication Date
CA321470A true CA321470A (fr)	1932-04-12

Family

ID=35282023

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA321470A Expired CA321470A (fr)			Dispositif d'appels de telephone

Country Status (1)

Country	Link
CA (1)	CA321470A (fr)

0
- CA CA321470A patent/CA321470A/fr not_active Expired

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