1564144

Information

• Patent Grant
• 1564144

• References
• Source

• Patent Number

  1,564,144

• Date Filed

  Not available

• Date Issued

  Tuesday, December 1, 1925
  99 years ago

• CPC

  • B61L25/065 - for signalling systems on the vehicle using current conduction

• US Classifications

  • 246 - Railway switches and signals