CA415422A - Electrical key switching device - Google Patents

Electrical key switching device

Info

Publication number
CA415422A
CA415422A CA415422A CA415422DA CA415422A CA 415422 A CA415422 A CA 415422A CA 415422 A CA415422 A CA 415422A CA 415422D A CA415422D A CA 415422DA CA 415422 A CA415422 A CA 415422A
Authority
CA
Canada
Prior art keywords
switching device
key switching
electrical key
electrical
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
CA415422A
Other languages
French (fr)
Inventor
Frank Stehlik Rudolph
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 CA415422A publication Critical patent/CA415422A/en
Expired legal-status Critical Current

Links

CA415422A Electrical key switching device Expired CA415422A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA415422T

Publications (1)

Publication Number Publication Date
CA415422A true CA415422A (en) 1943-09-28

Family

ID=35524631

Family Applications (1)

Application Number Title Priority Date Filing Date
CA415422A Expired CA415422A (en) Electrical key switching device

Country Status (1)

Country Link
CA (1) CA415422A (en)

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