2454249

Information

• Patent Grant
• 2454249

• References
• Source

• Patent Number

  2,454,249

• Date Filed

  Not available

• Date Issued

  Tuesday, November 16, 1948
  75 years ago

• CPC

  • B61L13/002 - actuated by the passage of the vehicle

• US Classifications

  • 246 - Railway switches and signals