BE579386A - Ferromagnetic chromium oxides and their preparation - Google Patents

Ferromagnetic chromium oxides and their preparation

Info

Publication number
BE579386A
BE579386A BE579386A BE579386A BE579386A BE 579386 A BE579386 A BE 579386A BE 579386 A BE579386 A BE 579386A BE 579386 A BE579386 A BE 579386A BE 579386 A BE579386 A BE 579386A
Authority
BE
Belgium
Prior art keywords
preparation
chromium oxides
ferromagnetic chromium
ferromagnetic
oxides
Prior art date
Application number
BE579386A
Other languages
French (fr)
Original Assignee
Du Pont
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US666744A external-priority patent/US2923683A/en
Priority claimed from US666745A external-priority patent/US2923684A/en
Priority claimed from US724811A external-priority patent/US3068176A/en
Priority claimed from US756542A external-priority patent/US3034988A/en
Application filed by Du Pont filed Critical Du Pont
Publication of BE579386A publication Critical patent/BE579386A/en

Links

BE579386A 1957-06-19 1959-06-05 Ferromagnetic chromium oxides and their preparation BE579386A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US666744A US2923683A (en) 1957-06-19 1957-06-19 Antimony-modified chromium oxide ferromagnetic compositions, their preparation and use
US666745A US2923684A (en) 1957-06-19 1957-06-19 Tin modified ferromagnetic chromium oxide, its preparation and use in recording members
US724811A US3068176A (en) 1958-03-31 1958-03-31 Ferromagnetic chromium oxides containing fluorine and their preparation
US756542A US3034988A (en) 1958-08-22 1958-08-22 Modified chromium oxide ferromagnetic compositions, their preparation and use

Publications (1)

Publication Number Publication Date
BE579386A true BE579386A (en) 1959-10-01

Family

ID=39578655

Family Applications (1)

Application Number Title Priority Date Filing Date
BE579386A BE579386A (en) 1957-06-19 1959-06-05 Ferromagnetic chromium oxides and their preparation

Country Status (1)

Country Link
BE (1) BE579386A (en)

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