2814387

Information

• Patent Grant
• 2814387

• References
• Source

• Patent Number

  2,814,387

• Date Filed

  Not available

• Date Issued

  Tuesday, November 26, 1957
  67 years ago

• CPC

  • E01B27/107 - along between the tracks only

• US Classifications

  • 209 - Classifying, separating, and assorting solids
  • 037 - Excavating
  • 171 - Unearthing plants or buried objects
  • 299 - Mining or in situ disintegration of hard material