2654831

Information

• Patent Grant
• 2654831

• References
• Source

• Patent Number

  2,654,831

• Date Filed

  Not available

• Date Issued

  Tuesday, October 6, 1953
  71 years ago

• CPC

  • B61L23/163 - using direct current

• US Classifications

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