427291

Information

• Patent Grant
• 427291

• References
• Source

• Patent Number

  427,291

• Date Filed

  Not available

• Date Issued

  Tuesday, May 6, 1890
  134 years ago

• CPC

  • E01B5/04 - Grooved rails
  • Y10T16/373 - Track and bracket

• US Classifications

  • 238 - Railways: surface track
  • 016 - Miscellaneous hardware