CA774183A - Loudspeaking telephone - Google Patents

Loudspeaking telephone

Info

Publication number
CA774183A
CA774183A CA774183A CA774183DA CA774183A CA 774183 A CA774183 A CA 774183A CA 774183 A CA774183 A CA 774183A CA 774183D A CA774183D A CA 774183DA CA 774183 A CA774183 A CA 774183A
Authority
CA
Canada
Prior art keywords
loudspeaking telephone
loudspeaking
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
CA774183A
Inventor
J. Clement Frank
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 CA774183A publication Critical patent/CA774183A/en
Expired legal-status Critical Current

Links

CA774183A Loudspeaking telephone Expired CA774183A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA774183T

Publications (1)

Publication Number Publication Date
CA774183A true CA774183A (en) 1967-12-19

Family

ID=36221467

Family Applications (1)

Application Number Title Priority Date Filing Date
CA774183A Expired CA774183A (en) Loudspeaking telephone

Country Status (1)

Country Link
CA (1) CA774183A (en)

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