CA294620A - Audiphone - Google Patents

Audiphone

Info

Publication number
CA294620A
CA294620A CA294620A CA294620DA CA294620A CA 294620 A CA294620 A CA 294620A CA 294620 A CA294620 A CA 294620A CA 294620D A CA294620D A CA 294620DA CA 294620 A CA294620 A CA 294620A
Authority
CA
Canada
Prior art keywords
audiphone
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
CA294620A
Other languages
French (fr)
Inventor
Winslow Hall Alfred
R. Donnelly John
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA294620A publication Critical patent/CA294620A/en
Expired legal-status Critical Current

Links

CA294620A Audiphone Expired CA294620A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA294620T

Publications (1)

Publication Number Publication Date
CA294620A true CA294620A (en) 1929-11-12

Family

ID=35231938

Family Applications (1)

Application Number Title Priority Date Filing Date
CA294620A Expired CA294620A (en) Audiphone

Country Status (1)

Country Link
CA (1) CA294620A (en)

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