CA523394A - Testing apparatus for telephone systems - Google Patents

Testing apparatus for telephone systems

Info

Publication number
CA523394A
CA523394A CA523394A CA523394DA CA523394A CA 523394 A CA523394 A CA 523394A CA 523394 A CA523394 A CA 523394A CA 523394D A CA523394D A CA 523394DA CA 523394 A CA523394 A CA 523394A
Authority
CA
Canada
Prior art keywords
testing apparatus
telephone systems
telephone
systems
testing
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
CA523394A
Other languages
French (fr)
Inventor
Kessler Frank
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
Original Assignee
Automatic Electric Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA523394A publication Critical patent/CA523394A/en
Expired legal-status Critical Current

Links

CA523394A Testing apparatus for telephone systems Expired CA523394A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA523394T

Publications (1)

Publication Number Publication Date
CA523394A true CA523394A (en) 1956-04-03

Family

ID=35676628

Family Applications (1)

Application Number Title Priority Date Filing Date
CA523394A Expired CA523394A (en) Testing apparatus for telephone systems

Country Status (1)

Country Link
CA (1) CA523394A (en)

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