2863991

Information

• Patent Grant
• 2863991

• References
• Source

• Patent Number

  2,863,991

• Date Filed

  Not available

• Date Issued

  Tuesday, December 9, 1958
  66 years ago

• CPC

  • B61L17/023 - Signalling; Signals with multiple indicating means

• US Classifications

  • 246 - Railway switches and signals
  • 104 - Railways