CA207548A - Systeme telephonique demi-automatique - Google Patents

Systeme telephonique demi-automatique

Info

Publication number
CA207548A
CA207548A CA207548A CA207548DA CA207548A CA 207548 A CA207548 A CA 207548A CA 207548 A CA207548 A CA 207548A CA 207548D A CA207548D A CA 207548DA CA 207548 A CA207548 A CA 207548A
Authority
CA
Canada
Prior art keywords
semi
telephone system
automatic telephone
automatic
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
CA207548A
Other languages
English (en)
Inventor
D. Willis Bernard
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.)
Nortel Networks Ltd
Original Assignee
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA207548A publication Critical patent/CA207548A/fr
Expired legal-status Critical Current

Links

CA207548A Systeme telephonique demi-automatique Expired CA207548A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA207548T

Publications (1)

Publication Number Publication Date
CA207548A true CA207548A (fr) 1921-01-11

Family

ID=35101327

Family Applications (1)

Application Number Title Priority Date Filing Date
CA207548A Expired CA207548A (fr) Systeme telephonique demi-automatique

Country Status (1)

Country Link
CA (1) CA207548A (fr)

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