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CA423174A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA423174A
CA423174A CA423174A CA423174DA CA423174A CA 423174 A CA423174 A CA 423174A CA 423174 A CA423174 A CA 423174A CA 423174D A CA423174D A CA 423174DA CA 423174 A CA423174 A CA 423174A
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
CA423174A
Other languages
French (fr)
Inventor
Adam Lewis Herbert
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 CA423174A publication Critical patent/CA423174A/en
Expired legal-status Critical Current

Links

CA423174A Telephone system Expired CA423174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA423174T

Publications (1)

Publication Number Publication Date
CA423174A true CA423174A (en) 1944-10-10

Family

ID=35534176

Family Applications (1)

Application Number Title Priority Date Filing Date
CA423174A Expired CA423174A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA423174A (en)

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