3619917

Information

• Patent Grant
• 3619917

• References
• Source

• Patent Number

  3,619,917

• Date Filed

  Not available

• Date Issued

  Tuesday, November 16, 1971
  53 years ago

• CPC

  • E02F3/7609 - Scraper blade mounted forwardly of the tractor on a pair of pivoting arms which are linked to the sides of the tractor
  • E02F3/8883 - Using the force of explosions

• US Classifications

  • 037 - Excavating
  • 175 - Boring or penetrating the earth
  • 299 - Mining or in situ disintegration of hard material