2890447

Information

• Patent Grant
• 2890447

• References
• Source

• Patent Number

  2,890,447

• Date Filed

  Not available

• Date Issued

  Tuesday, June 9, 1959
  65 years ago

• CPC

  • G10K1/062 - electrically operated

• US Classifications

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