CA500983A - Circuit de commande de sonnerie - Google Patents

Circuit de commande de sonnerie

Info

Publication number
CA500983A
CA500983A CA500983A CA500983DA CA500983A CA 500983 A CA500983 A CA 500983A CA 500983 A CA500983 A CA 500983A CA 500983D A CA500983D A CA 500983DA CA 500983 A CA500983 A CA 500983A
Authority
CA
Canada
Prior art keywords
control circuit
ringing control
ringing
circuit
control
Prior art date
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
CA500983A
Other languages
English (en)
Inventor
C. Goddard Myron
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
Application granted granted Critical
Publication of CA500983A publication Critical patent/CA500983A/fr
Expired legal-status Critical Current

Links

CA500983A Circuit de commande de sonnerie Expired CA500983A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA500983T

Publications (1)

Publication Number Publication Date
CA500983A true CA500983A (fr) 1954-03-23

Family

ID=35646877

Family Applications (1)

Application Number Title Priority Date Filing Date
CA500983A Expired CA500983A (fr) Circuit de commande de sonnerie

Country Status (1)

Country Link
CA (1) CA500983A (fr)

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