3345513

Information

• Patent Grant
• 3345513

• References
• Source

• Patent Number

  3,345,513

• Date Filed

  Not available

• Date Issued

  Tuesday, October 3, 1967
  57 years ago

• CPC

  • G08B21/04 - responsive to non-activity
  • B60L3/02 - Dead-man's devices
  • B60L2200/26 - Rail vehicles

• US Classifications

  • 246 - Railway switches and signals