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AU146296B2 - Magnetic iron oxides for sound recording tapes and records, method of production thereof, and tapes and records including such oxides - Google Patents
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AU146296B2 - Magnetic iron oxides for sound recording tapes and records, method of production thereof, and tapes and records including such oxides - Google Patents

Magnetic iron oxides for sound recording tapes and records, method of production thereof, and tapes and records including such oxides

Info

Publication number
AU146296B2
AU146296B2 AU25491/49A AU2549149A AU146296B2 AU 146296 B2 AU146296 B2 AU 146296B2 AU 25491/49 A AU25491/49 A AU 25491/49A AU 2549149 A AU2549149 A AU 2549149A AU 146296 B2 AU146296 B2 AU 146296B2
Authority
AU
Australia
Prior art keywords
tapes
records
oxides
production
magnetic iron
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
AU25491/49A
Other versions
AU2549149A (en
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
Filing date
Publication date
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of AU146296B2 publication Critical patent/AU146296B2/en
Publication of AU2549149A publication Critical patent/AU2549149A/en
Expired legal-status Critical Current

Links

AU25491/49A 1949-01-21 Magnetic iron oxides for sound recording tapes and records, method of production thereof, and tapes and records including such oxides Expired AU146296B2 (en)

Publications (2)

Publication Number Publication Date
AU146296B2 true AU146296B2 (en) 1949-02-24
AU2549149A AU2549149A (en) 1949-02-24

Family

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