CA280517A - Electromagnetic sound apparatus - Google Patents

Electromagnetic sound apparatus

Info

Publication number
CA280517A
CA280517A CA280517A CA280517DA CA280517A CA 280517 A CA280517 A CA 280517A CA 280517 A CA280517 A CA 280517A CA 280517D A CA280517D A CA 280517DA CA 280517 A CA280517 A CA 280517A
Authority
CA
Canada
Prior art keywords
sound apparatus
electromagnetic sound
electromagnetic
sound
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
CA280517A
Other languages
French (fr)
Inventor
E. Bigham Cecil
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.)
BRANDES LABORATORIES
Original Assignee
BRANDES LABORATORIES
Publication date
Application granted granted Critical
Publication of CA280517A publication Critical patent/CA280517A/en
Expired legal-status Critical Current

Links

CA280517A Electromagnetic sound apparatus Expired CA280517A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA280517T

Publications (1)

Publication Number Publication Date
CA280517A true CA280517A (en) 1928-05-29

Family

ID=35213609

Family Applications (1)

Application Number Title Priority Date Filing Date
CA280517A Expired CA280517A (en) Electromagnetic sound apparatus

Country Status (1)

Country Link
CA (1) CA280517A (en)

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