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CA436916A - Line testing and switching circuit - Google Patents

Line testing and switching circuit

Info

Publication number
CA436916A
CA436916A CA436916A CA436916DA CA436916A CA 436916 A CA436916 A CA 436916A CA 436916 A CA436916 A CA 436916A CA 436916D A CA436916D A CA 436916DA CA 436916 A CA436916 A CA 436916A
Authority
CA
Canada
Prior art keywords
switching circuit
line testing
testing
line
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
CA436916A
Other languages
French (fr)
Inventor
Dysart Birney
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Bell Telephone Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA436916A publication Critical patent/CA436916A/en
Expired legal-status Critical Current

Links

CA436916A Line testing and switching circuit Expired CA436916A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA436916T

Publications (1)

Publication Number Publication Date
CA436916A true CA436916A (en) 1946-09-10

Family

ID=35552151

Family Applications (1)

Application Number Title Priority Date Filing Date
CA436916A Expired CA436916A (en) Line testing and switching circuit

Country Status (1)

Country Link
CA (1) CA436916A (en)

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