CA571080A - Electronic ringing frequency generator - Google Patents

Electronic ringing frequency generator

Info

Publication number
CA571080A
CA571080A CA571080A CA571080DA CA571080A CA 571080 A CA571080 A CA 571080A CA 571080 A CA571080 A CA 571080A CA 571080D A CA571080D A CA 571080DA CA 571080 A CA571080 A CA 571080A
Authority
CA
Canada
Prior art keywords
frequency generator
ringing frequency
electronic ringing
electronic
generator
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
CA571080A
Other languages
French (fr)
Inventor
J. Mccreary Harold
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.)
General Telephone Laboratories Inc
Original Assignee
General Telephone Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA571080A publication Critical patent/CA571080A/en
Expired legal-status Critical Current

Links

CA571080A Electronic ringing frequency generator Expired CA571080A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA571080T

Publications (1)

Publication Number Publication Date
CA571080A true CA571080A (en) 1959-02-24

Family

ID=35743626

Family Applications (1)

Application Number Title Priority Date Filing Date
CA571080A Expired CA571080A (en) Electronic ringing frequency generator

Country Status (1)

Country Link
CA (1) CA571080A (en)

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