1438736

Information

• Patent Grant
• 1438736

• References
• Source

• Patent Number

  1,438,736

• Date Filed

  Not available

• Date Issued

  Tuesday, December 12, 1922
  102 years ago

• CPC

  • H01H63/20 - using stepping magnet and ratchet

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets