3021520

Information

• Patent Grant
• 3021520

• References
• Source

• Patent Number

  3,021,520

• Date Filed

  Not available

• Date Issued

  Tuesday, February 13, 1962
  63 years ago

• CPC

  • H02J13/0041 - using lamps or electromechanical means
  • G10K9/15 - Self-interrupting arrangements
  • Y02B70/3266 - The end-user application being or involving home appliances
  • Y04S20/242 - the end-user application being or involving home appliances

• US Classifications

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