CA187549A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA187549A
CA187549A CA000187549A CA187549DA CA187549A CA 187549 A CA187549 A CA 187549A CA 000187549 A CA000187549 A CA 000187549A CA 187549D A CA187549D A CA 187549DA CA 187549 A CA187549 A CA 187549A
Authority
CA
Canada
Prior art keywords
telephone system
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
CA000187549A
Other languages
English (en)
Inventor
Charles W. Keckler
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 Inc
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 CA187549A publication Critical patent/CA187549A/fr
Expired legal-status Critical Current

Links

CA000187549A 1917-11-06 1917-11-06 Systeme telephonique Expired CA187549A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA187549T 1917-11-06

Publications (1)

Publication Number Publication Date
CA187549A true CA187549A (fr) 1918-11-19

Family

ID=45307200

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000187549A Expired CA187549A (fr) 1917-11-06 1917-11-06 Systeme telephonique

Country Status (1)

Country Link
CA (1) CA187549A (fr)

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