CA546420A - Magnetic insert earphone and inserts therefor - Google Patents

Magnetic insert earphone and inserts therefor

Info

Publication number
CA546420A
CA546420A CA546420A CA546420DA CA546420A CA 546420 A CA546420 A CA 546420A CA 546420 A CA546420 A CA 546420A CA 546420D A CA546420D A CA 546420DA CA 546420 A CA546420 A CA 546420A
Authority
CA
Canada
Prior art keywords
magnetic insert
insert earphone
inserts therefor
therefor
inserts
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
CA546420A
Other languages
French (fr)
Inventor
F. Knauert William
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.)
Sonotone Corp
Original Assignee
Sonotone Corp
Publication date
Application granted granted Critical
Publication of CA546420A publication Critical patent/CA546420A/en
Expired legal-status Critical Current

Links

CA546420A Magnetic insert earphone and inserts therefor Expired CA546420A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA546420T

Publications (1)

Publication Number Publication Date
CA546420A true CA546420A (en) 1957-09-17

Family

ID=35703616

Family Applications (1)

Application Number Title Priority Date Filing Date
CA546420A Expired CA546420A (en) Magnetic insert earphone and inserts therefor

Country Status (1)

Country Link
CA (1) CA546420A (en)

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