CA174975A - Telephone switchboard - Google Patents

Telephone switchboard

Info

Publication number
CA174975A
CA174975A CA000174975A CA174975DA CA174975A CA 174975 A CA174975 A CA 174975A CA 000174975 A CA000174975 A CA 000174975A CA 174975D A CA174975D A CA 174975DA CA 174975 A CA174975 A CA 174975A
Authority
CA
Canada
Prior art keywords
telephone switchboard
switchboard
telephone
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
CA000174975A
Other languages
French (fr)
Inventor
Hiter H. Lowry
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of CA174975A publication Critical patent/CA174975A/en
Expired legal-status Critical Current

Links

CA000174975A 1915-12-01 1915-12-01 Telephone switchboard Expired CA174975A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA174975T 1915-12-01

Publications (1)

Publication Number Publication Date
CA174975A true CA174975A (en) 1917-02-06

Family

ID=45294628

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000174975A Expired CA174975A (en) 1915-12-01 1915-12-01 Telephone switchboard

Country Status (1)

Country Link
CA (1) CA174975A (en)

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