2380864

Information

• Patent Grant
• 2380864

• References
• Source

• Patent Number

  2,380,864

• Date Filed

  Not available

• Date Issued

  Tuesday, July 31, 1945
  79 years ago

• CPC

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

• US Classifications

  • 246 - Railway switches and signals
  • 342 - Communications: directive radio wave systems and devices