3219814

Information

• Patent Grant
• 3219814

• References
• Source

• Patent Number

  3,219,814

• Date Filed

  Not available

• Date Issued

  Tuesday, November 23, 1965
  59 years ago

• CPC

  • B61L25/04 - Indicating or recording train identities
  • B61L7/088 - Common line wire control using series of coded pulses

• US Classifications

  • 246 - Railway switches and signals