CA51557A - Telephone switchboard - Google Patents

Telephone switchboard

Info

Publication number
CA51557A
CA51557A CA000051557A CA51557DA CA51557A CA 51557 A CA51557 A CA 51557A CA 000051557 A CA000051557 A CA 000051557A CA 51557D A CA51557D A CA 51557DA CA 51557 A CA51557 A CA 51557A
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
CA000051557A
Other languages
French (fr)
Inventor
Theodore Spencer
Hammond Vinton Hayes
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.)
Bell Telephone Company of Canada
Original Assignee
Bell Telephone Company of Canada
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 Bell Telephone Company of Canada filed Critical Bell Telephone Company of Canada
Application granted granted Critical
Publication of CA51557A publication Critical patent/CA51557A/en
Expired legal-status Critical Current

Links

CA000051557A 1895-05-20 1895-05-20 Telephone switchboard Expired CA51557A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA51557T 1895-05-20

Publications (1)

Publication Number Publication Date
CA51557A true CA51557A (en) 1896-03-05

Family

ID=45168096

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000051557A Expired CA51557A (en) 1895-05-20 1895-05-20 Telephone switchboard

Country Status (1)

Country Link
CA (1) CA51557A (en)

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