1687515

Information

• Patent Grant
• 1687515

• References
• Source

• Patent Number

  1,687,515

• Date Filed

  Not available

• Date Issued

  Tuesday, October 16, 1928
  96 years ago

• CPC

  • H01H77/08 - retained closed by permanent or remanent magnetism and opened by windings acting in opposition
  • H01H71/26 - with windings acting in opposition

• US Classifications

  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 361 - Electricity: electrical systems and devices