CA78690A - Systeme d'echange de telephone - Google Patents

Systeme d'echange de telephone

Info

Publication number
CA78690A
CA78690A CA000078690A CA78690DA CA78690A CA 78690 A CA78690 A CA 78690A CA 000078690 A CA000078690 A CA 000078690A CA 78690D A CA78690D A CA 78690DA CA 78690 A CA78690 A CA 78690A
Authority
CA
Canada
Prior art keywords
exchange system
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
CA000078690A
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 CA78690A publication Critical patent/CA78690A/fr
Expired legal-status Critical Current

Links

CA000078690A 1902-04-17 1902-04-17 Systeme d'echange de telephone Expired CA78690A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA78690T 1902-04-17

Publications (1)

Publication Number Publication Date
CA78690A true CA78690A (fr) 1902-12-16

Family

ID=45195226

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000078690A Expired CA78690A (fr) 1902-04-17 1902-04-17 Systeme d'echange de telephone

Country Status (1)

Country Link
CA (1) CA78690A (fr)

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