CA648225A - Magnetic sound recording - Google Patents

Magnetic sound recording

Info

Publication number
CA648225A
CA648225A CA648225A CA648225DA CA648225A CA 648225 A CA648225 A CA 648225A CA 648225 A CA648225 A CA 648225A CA 648225D A CA648225D A CA 648225DA CA 648225 A CA648225 A CA 648225A
Authority
CA
Canada
Prior art keywords
sound recording
magnetic sound
magnetic
recording
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
CA648225A
Inventor
P. Alles Francis
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
Publication date
Application granted granted Critical
Publication of CA648225A publication Critical patent/CA648225A/en
Expired legal-status Critical Current

Links

CA648225A Magnetic sound recording Expired CA648225A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA648225T

Publications (1)

Publication Number Publication Date
CA648225A true CA648225A (en) 1962-09-11

Family

ID=35936873

Family Applications (1)

Application Number Title Priority Date Filing Date
CA648225A Expired CA648225A (en) Magnetic sound recording

Country Status (1)

Country Link
CA (1) CA648225A (en)

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