CA518931A - Telephone subscriber's stepping switches - Google Patents

Telephone subscriber's stepping switches

Info

Publication number
CA518931A
CA518931A CA518931A CA518931DA CA518931A CA 518931 A CA518931 A CA 518931A CA 518931 A CA518931 A CA 518931A CA 518931D A CA518931D A CA 518931DA CA 518931 A CA518931 A CA 518931A
Authority
CA
Canada
Prior art keywords
telephone subscriber
stepping switches
stepping
switches
subscriber
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
CA518931A
Other languages
French (fr)
Inventor
Marble Clarence
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 CA518931A publication Critical patent/CA518931A/en
Expired legal-status Critical Current

Links

CA518931A Telephone subscriber's stepping switches Expired CA518931A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA518931T

Publications (1)

Publication Number Publication Date
CA518931A true CA518931A (en) 1955-11-29

Family

ID=35672134

Family Applications (1)

Application Number Title Priority Date Filing Date
CA518931A Expired CA518931A (en) Telephone subscriber's stepping switches

Country Status (1)

Country Link
CA (1) CA518931A (en)

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