2564778

Information

• Patent Grant
• 2564778

• References
• Source

• Patent Number

  2,564,778

• Date Filed

  Not available

• Date Issued

  Tuesday, August 21, 1951
  73 years ago

• CPC

  • B61L23/22 - for controlling traffic in two directions over the same pair of rails

• US Classifications

  • 246 - Railway switches and signals