3601603

Information

• Patent Grant
• 3601603

• References
• Source

• Patent Number

  3,601,603

• Date Filed

  Not available

• Date Issued

  Tuesday, August 24, 1971
  53 years ago

• CPC

  • B61L29/226 - using track-circuits, closed or short-circuited by train or using isolated rail-sections

• US Classifications

  • 246 - Railway switches and signals
  • 318 - Electricity: motive power systems
  • 361 - Electricity: electrical systems and devices