CA398988A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA398988A
CA398988A CA398988A CA398988DA CA398988A CA 398988 A CA398988 A CA 398988A CA 398988 A CA398988 A CA 398988A CA 398988D A CA398988D A CA 398988DA CA 398988 A CA398988 A CA 398988A
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
CA398988A
Other languages
English (en)
Inventor
Eugene Peterson Seth
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.)
Associated Telephone and Telegraph Co
Original Assignee
Associated Telephone and Telegraph Co
Publication date
Application granted granted Critical
Publication of CA398988A publication Critical patent/CA398988A/fr
Expired legal-status Critical Current

Links

CA398988A Systeme telephonique Expired CA398988A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA398988T

Publications (1)

Publication Number Publication Date
CA398988A true CA398988A (fr) 1941-09-02

Family

ID=35409460

Family Applications (1)

Application Number Title Priority Date Filing Date
CA398988A Expired CA398988A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA398988A (fr)

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