1274221

Information

• Patent Grant
• 1274221

• References
• Source

• Patent Number

  1,274,221

• Date Filed

  Not available

• Date Issued

  Tuesday, July 30, 1918
  106 years ago

• CPC

  • E01B3/48 - Distance keepers or tie-rods for sleepers

• US Classifications

  • 238 - Railways: surface track