3638207

Information

• Patent Grant
• 3638207

• References
• Source

• Patent Number

  3,638,207

• Date Filed

  Not available

• Date Issued

  Tuesday, January 25, 1972
  53 years ago

• CPC

  • C04B35/2608 - Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
  • C04B35/2633 - containing barium, strontium or calcium
  • H01F10/205 - Hexagonal ferrites

• US Classifications

  • 252 - Compositions
  • 365 - Static information storage and retrieval