3836768

Information

• Patent Grant
• 3836768

• References
• Source

• Patent Number

  3,836,768

• Date Filed

  Not available

• Date Issued

  Tuesday, September 17, 1974
  50 years ago

• CPC

  • B61L25/06 - Indicating or recording the setting of track apparatus
  • B61L21/06 - Vehicle-on-line indication Monitoring locking and release of the route
  • B61L27/0038 - Track-side control of safe travel of vehicle or vehicle train

• US Classifications

  • 246 - Railway switches and signals
  • 701 - Data processing: vehicles, navigation, and relative location