3660652

Information

• Patent Grant
• 3660652

• References
• Source

• Patent Number

  3,660,652

• Date Filed

  Not available

• Date Issued

  Tuesday, May 2, 1972
  53 years ago

• CPC

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

• US Classifications

  • 246 - Railway switches and signals