CA574804A - Telephone system using single-motion numerical switches - Google Patents

Telephone system using single-motion numerical switches

Info

Publication number
CA574804A
CA574804A CA574804A CA574804DA CA574804A CA 574804 A CA574804 A CA 574804A CA 574804 A CA574804 A CA 574804A CA 574804D A CA574804D A CA 574804DA CA 574804 A CA574804 A CA 574804A
Authority
CA
Canada
Prior art keywords
telephone system
numerical switches
motion numerical
motion
switches
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
CA574804A
Other languages
French (fr)
Inventor
L. Kahn Frederick
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.)
Nortel Networks Ltd
Original Assignee
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA574804A publication Critical patent/CA574804A/en
Expired legal-status Critical Current

Links

CA574804A Telephone system using single-motion numerical switches Expired CA574804A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA574804T

Publications (1)

Publication Number Publication Date
CA574804A true CA574804A (en) 1959-04-28

Family

ID=35750659

Family Applications (1)

Application Number Title Priority Date Filing Date
CA574804A Expired CA574804A (en) Telephone system using single-motion numerical switches

Country Status (1)

Country Link
CA (1) CA574804A (en)

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