CA403999A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA403999A
CA403999A CA403999A CA403999DA CA403999A CA 403999 A CA403999 A CA 403999A CA 403999 A CA403999 A CA 403999A CA 403999D A CA403999D A CA 403999DA CA 403999 A CA403999 A CA 403999A
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
CA403999A
Other languages
French (fr)
Inventor
Lyman Moody Dwight
Foster Shipley Frank
Dow Newby Neal
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA403999A publication Critical patent/CA403999A/en
Expired legal-status Critical Current

Links

CA403999A Telephone system Expired CA403999A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA403999T

Publications (1)

Publication Number Publication Date
CA403999A true CA403999A (en) 1942-04-07

Family

ID=35414447

Family Applications (1)

Application Number Title Priority Date Filing Date
CA403999A Expired CA403999A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA403999A (en)

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