CA791321A - Telephone tone ringer - Google Patents

Telephone tone ringer

Info

Publication number
CA791321A
CA791321A CA791321A CA791321DA CA791321A CA 791321 A CA791321 A CA 791321A CA 791321 A CA791321 A CA 791321A CA 791321D A CA791321D A CA 791321DA CA 791321 A CA791321 A CA 791321A
Authority
CA
Canada
Prior art keywords
tone ringer
telephone tone
telephone
ringer
tone
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
CA791321A
Inventor
C. Beadle Anthony
W. Parrish Ralph
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.)
International Telephone and Telegraph Corp
Original Assignee
International Telephone and Telegraph Corp
Publication date
Application granted granted Critical
Publication of CA791321A publication Critical patent/CA791321A/en
Expired legal-status Critical Current

Links

CA791321A Telephone tone ringer Expired CA791321A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA791321T

Publications (1)

Publication Number Publication Date
CA791321A true CA791321A (en) 1968-07-30

Family

ID=36255304

Family Applications (1)

Application Number Title Priority Date Filing Date
CA791321A Expired CA791321A (en) Telephone tone ringer

Country Status (1)

Country Link
CA (1) CA791321A (en)

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