3887401

Information

• Patent Grant
• 3887401

• References
• Source

• Patent Number

  3,887,401

• Date Filed

  Not available

• Date Issued

  Tuesday, June 3, 1975
  49 years ago

• CPC

  • H01F13/003 - Methods and devices for magnetising permanent magnets
  • G04C3/10 - driven by electro-magnetic means
  • G04D9/00 - Demagnetising devices

• US Classifications

  • 148 - Metal treatment
  • 968 - Horology