CA676395A - Telephone ringing circuit - Google Patents

Telephone ringing circuit

Info

Publication number: CA676395A
Authority: CA; Canada
Prior art keywords: ringing circuit; telephone ringing; telephone; circuit; ringing
Prior art date: 1963-12-17
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

CA676395A

Inventor

H. Williford Oscar

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.)

AT&T Corp

Original Assignee

Western Electric Co Inc

Publication date

1963-12-17

1963-12-17 Application granted granted Critical

1963-12-17 Publication of CA676395A publication Critical patent/CA676395A/en

Status Expired legal-status Critical Current

Links

CA676395A Telephone ringing circuit Expired CA676395A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA676395T

Publications (1)

Publication Number	Publication Date
CA676395A true CA676395A (en)	1963-12-17

Family

ID=35977479

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA676395A Expired CA676395A (en)			Telephone ringing circuit

Country Status (1)

Country	Link
CA (1)	CA676395A (en)

0
- CA CA676395A patent/CA676395A/en not_active Expired

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