CA74179A - Exchange de telephone - Google Patents

Exchange de telephone

Info

Publication number
CA74179A
CA74179A CA000074179A CA74179DA CA74179A CA 74179 A CA74179 A CA 74179A CA 000074179 A CA000074179 A CA 000074179A CA 74179D A CA74179D A CA 74179DA CA 74179 A CA74179 A CA 74179A
Authority
CA
Canada
Prior art keywords
telephone exchange
telephone
exchange
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
CA000074179A
Other languages
English (en)
Inventor
Alexander E. Keith
John Erickson
Charles J. Erickson
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.)
STROWGER AUTOMATIC TELEPHONE EXCHANGE
Original Assignee
STROWGER AUTOMATIC TELEPHONE EXCHANGE
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 STROWGER AUTOMATIC TELEPHONE EXCHANGE filed Critical STROWGER AUTOMATIC TELEPHONE EXCHANGE
Application granted granted Critical
Publication of CA74179A publication Critical patent/CA74179A/fr
Expired legal-status Critical Current

Links

CA000074179A 1900-11-13 1900-11-13 Exchange de telephone Expired CA74179A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA74179T 1900-11-13

Publications (1)

Publication Number Publication Date
CA74179A true CA74179A (fr) 1901-12-24

Family

ID=45190716

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000074179A Expired CA74179A (fr) 1900-11-13 1900-11-13 Exchange de telephone

Country Status (1)

Country Link
CA (1) CA74179A (fr)

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