519772

Information

• Patent Grant
• 519772

• References
• Source

• Patent Number

  519,772

• Date Filed

  Not available

• Date Issued

  Tuesday, May 15, 1894
  130 years ago

• CPC

  • E01B3/12 - Longitudinal sleepers Longitudinal sleepers integral or combined with tie-rods Combined longitudinal and transverse sleepers
  • A63G7/00 - Up-and-down hill tracks Switchbacks

• US Classifications

  • 238 - Railways: surface track