CA711345A - Called-line tone-signaling system - Google Patents

Called-line tone-signaling system

Info

Publication number
CA711345A
CA711345A CA711345A CA711345DA CA711345A CA 711345 A CA711345 A CA 711345A CA 711345 A CA711345 A CA 711345A CA 711345D A CA711345D A CA 711345DA CA 711345 A CA711345 A CA 711345A
Authority
CA
Canada
Prior art keywords
called
signaling system
line tone
tone
line
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
CA711345A
Inventor
W. Hemminger Paul
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.)
Standard Telephone and Cables Manufacturing Canada Ltd
Original Assignee
Standard Telephone and Cables Manufacturing Canada Ltd
Publication date
Application granted granted Critical
Publication of CA711345A publication Critical patent/CA711345A/en
Expired legal-status Critical Current

Links

CA711345A Called-line tone-signaling system Expired CA711345A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA711345T

Publications (1)

Publication Number Publication Date
CA711345A true CA711345A (en) 1965-06-08

Family

ID=36040623

Family Applications (1)

Application Number Title Priority Date Filing Date
CA711345A Expired CA711345A (en) Called-line tone-signaling system

Country Status (1)

Country Link
CA (1) CA711345A (en)

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