CA584859A - Methods of and apparatus for magnetic recording of sound on record cards - Google Patents

Methods of and apparatus for magnetic recording of sound on record cards

Info

Publication number
CA584859A
CA584859A CA584859A CA584859DA CA584859A CA 584859 A CA584859 A CA 584859A CA 584859 A CA584859 A CA 584859A CA 584859D A CA584859D A CA 584859DA CA 584859 A CA584859 A CA 584859A
Authority
CA
Canada
Prior art keywords
sound
methods
magnetic recording
record cards
cards
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
CA584859A
Other languages
French (fr)
Inventor
M. Macchesney Chester
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.)
ELLAMAC Inc
Original Assignee
ELLAMAC Inc
Publication date
Application granted granted Critical
Publication of CA584859A publication Critical patent/CA584859A/en
Expired legal-status Critical Current

Links

CA584859A Methods of and apparatus for magnetic recording of sound on record cards Expired CA584859A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA584859T

Publications (1)

Publication Number Publication Date
CA584859A true CA584859A (en) 1959-10-13

Family

ID=35764308

Family Applications (1)

Application Number Title Priority Date Filing Date
CA584859A Expired CA584859A (en) Methods of and apparatus for magnetic recording of sound on record cards

Country Status (1)

Country Link
CA (1) CA584859A (en)

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