3819934

Information

• Patent Grant
• 3819934

• References
• Source

• Patent Number

  3,819,934

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1974
  51 years ago

• CPC

  • B61L29/286 - using conductor circuits controlled by the vehicle

• US Classifications

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