1566639

Information

• Patent Grant
• 1566639

• References
• Source

• Patent Number

  1,566,639

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1925
  99 years ago

• CPC

  • E01B3/22 - Longitudinal sleepers Longitudinal sleepers integral or combined with tie-rods Combined longitudinal and transverse sleepers

• US Classifications

  • 238 - Railways: surface track