CA21548A - Commutateur telephonique - Google Patents

Commutateur telephonique

Info

Publication number
CA21548A
CA21548A CA000021548A CA21548DA CA21548A CA 21548 A CA21548 A CA 21548A CA 000021548 A CA000021548 A CA 000021548A CA 21548D A CA21548D A CA 21548DA CA 21548 A CA21548 A CA 21548A
Authority
CA
Canada
Prior art keywords
telephone connection
telephone
connection
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
CA000021548A
Other languages
English (en)
Inventor
James A. Harlan
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.)
LONG TELEPHONE AND TELEGRAPH Co
Original Assignee
LONG TELEPHONE AND TELEGRAPH Co
Publication date
Application granted granted Critical
Publication of CA21548A publication Critical patent/CA21548A/fr
Expired legal-status Critical Current

Links

CA000021548A Commutateur telephonique Expired CA21548A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA21548T

Publications (1)

Publication Number Publication Date
CA21548A true CA21548A (fr) 1885-04-28

Family

ID=45138091

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000021548A Expired CA21548A (fr) Commutateur telephonique

Country Status (1)

Country Link
CA (1) CA21548A (fr)

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