CA444821A - Automatic switching system - Google Patents

Automatic switching system

Info

Publication number
CA444821A
CA444821A CA444821A CA444821DA CA444821A CA 444821 A CA444821 A CA 444821A CA 444821 A CA444821 A CA 444821A CA 444821D A CA444821D A CA 444821DA CA 444821 A CA444821 A CA 444821A
Authority
CA
Canada
Prior art keywords
switching system
automatic switching
automatic
switching
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
CA444821A
Other languages
French (fr)
Inventor
D. Willis Bernard
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.)
Automatic Electric Laboratories Inc
Associated Telephone and Telegraph Co
Original Assignee
Automatic Electric Laboratories Inc
Associated Telephone and Telegraph Co
Publication date
Application granted granted Critical
Publication of CA444821A publication Critical patent/CA444821A/en
Expired legal-status Critical Current

Links

CA444821A Automatic switching system Expired CA444821A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA444821T

Publications (1)

Publication Number Publication Date
CA444821A true CA444821A (en) 1947-11-04

Family

ID=35562471

Family Applications (1)

Application Number Title Priority Date Filing Date
CA444821A Expired CA444821A (en) Automatic switching system

Country Status (1)

Country Link
CA (1) CA444821A (en)

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