CA215093A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA215093A
CA215093A CA215093A CA215093DA CA215093A CA 215093 A CA215093 A CA 215093A CA 215093 A CA215093 A CA 215093A CA 215093D A CA215093D A CA 215093DA CA 215093 A CA215093 A CA 215093A
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
CA215093A
Other languages
English (en)
Inventor
G. Richardson Rodney
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.)
AUTOMATIC TELEPHONE SYSTEM
Nortel Networks Ltd
Original Assignee
AUTOMATIC TELEPHONE SYSTEM
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA215093A publication Critical patent/CA215093A/fr
Expired legal-status Critical Current

Links

CA215093A Systeme telephonique Expired CA215093A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA215093T

Publications (1)

Publication Number Publication Date
CA215093A true CA215093A (fr) 1922-01-10

Family

ID=35109537

Family Applications (1)

Application Number Title Priority Date Filing Date
CA215093A Expired CA215093A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA215093A (fr)

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