CA433242A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA433242A
CA433242A CA433242A CA433242DA CA433242A CA 433242 A CA433242 A CA 433242A CA 433242 A CA433242 A CA 433242A CA 433242D A CA433242D A CA 433242DA CA 433242 A CA433242 A CA 433242A
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
CA433242A
Other languages
French (fr)
Inventor
F. Crocker Thomas
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 CA433242A publication Critical patent/CA433242A/en
Expired legal-status Critical Current

Links

CA433242A Telephone system Expired CA433242A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA433242T

Publications (1)

Publication Number Publication Date
CA433242A true CA433242A (en) 1946-02-26

Family

ID=35547859

Family Applications (1)

Application Number Title Priority Date Filing Date
CA433242A Expired CA433242A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA433242A (en)

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