1793389

Information

• Patent Grant
• 1793389

• References
• Source

• Patent Number

  1,793,389

• Date Filed

  Not available

• Date Issued

  Tuesday, February 17, 1931
  93 years ago

• CPC

  • E01B27/107 - along between the tracks only

• US Classifications

  • 171 - Unearthing plants or buried objects
  • 037 - Excavating