CA521242A - Loudspeaking telephone instruments - Google Patents

Loudspeaking telephone instruments

Info

Publication number
CA521242A
CA521242A CA521242A CA521242DA CA521242A CA 521242 A CA521242 A CA 521242A CA 521242 A CA521242 A CA 521242A CA 521242D A CA521242D A CA 521242DA CA 521242 A CA521242 A CA 521242A
Authority
CA
Canada
Prior art keywords
telephone instruments
loudspeaking telephone
loudspeaking
instruments
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
CA521242A
Other languages
French (fr)
Inventor
M. Giannini Gabriel
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
Original Assignee
Automatic Electric Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA521242A publication Critical patent/CA521242A/en
Expired legal-status Critical Current

Links

CA521242A Loudspeaking telephone instruments Expired CA521242A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA521242T

Publications (1)

Publication Number Publication Date
CA521242A true CA521242A (en) 1956-01-31

Family

ID=35674463

Family Applications (1)

Application Number Title Priority Date Filing Date
CA521242A Expired CA521242A (en) Loudspeaking telephone instruments

Country Status (1)

Country Link
CA (1) CA521242A (en)

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