CA501321A - Systemes telephoniques - Google Patents

Systemes telephoniques

Info

Publication number
CA501321A
CA501321A CA501321A CA501321DA CA501321A CA 501321 A CA501321 A CA 501321A CA 501321 A CA501321 A CA 501321A CA 501321D A CA501321D A CA 501321DA CA 501321 A CA501321 A CA 501321A
Authority
CA
Canada
Prior art keywords
telephone systems
telephone
systems
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
CA501321A
Other languages
English (en)
Inventor
H. Herrick Roswell
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 CA501321A publication Critical patent/CA501321A/fr
Expired legal-status Critical Current

Links

CA501321A Systemes telephoniques Expired CA501321A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA501321T

Publications (1)

Publication Number Publication Date
CA501321A true CA501321A (fr) 1954-04-06

Family

ID=35647218

Family Applications (1)

Application Number Title Priority Date Filing Date
CA501321A Expired CA501321A (fr) Systemes telephoniques

Country Status (1)

Country Link
CA (1) CA501321A (fr)

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