3233234

Information

• Patent Grant
• 3233234

• References
• Source

• Patent Number

  3,233,234

• Date Filed

  Not available

• Date Issued

  Tuesday, February 1, 1966
  58 years ago

• CPC

  • B61L1/167 - Circuit details
  • B61L25/04 - Indicating or recording train identities
  • G01V3/101 - by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
  • G08G1/042 - using inductive or magnetic detectors

• US Classifications

  • 340 - Communications: electrical
  • 324 - Electricity: measuring and testing
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 331 - Oscillators