2190667

Information

• Patent Grant
• 2190667

• References
• Source

• Patent Number

  2,190,667

• Date Filed

  Not available

• Date Issued

  Tuesday, February 20, 1940
  85 years ago

• CPC

  • C21C7/00 - Treating molten ferrous alloys
  • C22C19/07 - based on cobalt
  • C22C38/12 - containing tungsten, tantalum, molybdenum, vanadium, or niobium
  • C22F1/10 - of nickel or cobalt or alloys based thereon
  • G01R1/16 - Magnets
  • Y10S29/028 - Magnetic recording digest
  • Y10S428/928 - Magnetic property
  • Y10T428/12931 - Co-, Fe-, or Ni-base components, alternative to each other

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 029 - Metal working
  • 148 - Metal treatment
  • 324 - Electricity: measuring and testing
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 420 - Alloys or metallic compositions