CA902017A - Magnetic recording document having validating means - Google Patents

Magnetic recording document having validating means

Info

Publication number
CA902017A
CA902017A CA902017A CA902017DA CA902017A CA 902017 A CA902017 A CA 902017A CA 902017 A CA902017 A CA 902017A CA 902017D A CA902017D A CA 902017DA CA 902017 A CA902017 A CA 902017A
Authority
CA
Canada
Prior art keywords
magnetic recording
validating means
recording document
document
validating
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
CA902017A
Inventor
D. Holm John
J. Vogelgesang Peter
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Publication date
Application granted granted Critical
Publication of CA902017A publication Critical patent/CA902017A/en
Expired legal-status Critical Current

Links

CA902017A Magnetic recording document having validating means Expired CA902017A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA902017T

Publications (1)

Publication Number Publication Date
CA902017A true CA902017A (en) 1972-06-06

Family

ID=36409933

Family Applications (1)

Application Number Title Priority Date Filing Date
CA902017A Expired CA902017A (en) Magnetic recording document having validating means

Country Status (1)

Country Link
CA (1) CA902017A (en)

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