2798214

Information

• Patent Grant
• 2798214

• References
• Source

• Patent Number

  2,798,214

• Date Filed

  Not available

• Date Issued

  Tuesday, July 2, 1957
  67 years ago

• CPC

  • B61L23/12 - partly operated by train
  • G01F23/0007 - for discrete indicating and measuring
  • G05D9/12 - characterised by the use of electric means
  • Y10T307/878 - Electronically controlled relay

• US Classifications

  • 246 - Railway switches and signals
  • 307 - Electrical transmission or interconnection systems
  • 324 - Electricity: measuring and testing
  • 340 - Communications: electrical
  • 431 - Combustion