CA449626A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA449626A
CA449626A CA449626A CA449626DA CA449626A CA 449626 A CA449626 A CA 449626A CA 449626 A CA449626 A CA 449626A CA 449626D A CA449626D A CA 449626DA CA 449626 A CA449626 A CA 449626A
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
CA449626A
Other languages
English (en)
Inventor
Ellis Ostline John
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 Electric Laboratories Inc
Associated Telephone and Telegraph Co
Original Assignee
Automatic Electric Laboratories Inc
Associated Telephone and Telegraph Co
Publication date
Application granted granted Critical
Publication of CA449626A publication Critical patent/CA449626A/fr
Expired legal-status Critical Current

Links

CA449626A Systeme telephonique Expired CA449626A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA449626T

Publications (1)

Publication Number Publication Date
CA449626A true CA449626A (fr) 1948-07-06

Family

ID=35567337

Family Applications (1)

Application Number Title Priority Date Filing Date
CA449626A Expired CA449626A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA449626A (fr)

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