3720894

Information

• Patent Grant
• 3720894

• References
• Source

• Patent Number

  3,720,894

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1973
  51 years ago

• CPC

  • H01H71/2445 - using a reed switch

• US Classifications

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