3900810

Information

• Patent Grant
• 3900810

• References
• Source

• Patent Number

  3,900,810

• Date Filed

  Not available

• Date Issued

  Tuesday, August 19, 1975
  49 years ago

• CPC

  • H01F7/13 - characterised by pulling-force characteristics
  • H01F7/1607 - Armatures entering the winding
  • H01H71/345 - having a delayed movable core and a movable armature

• US Classifications

  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets