3574404

Information

• Patent Grant
• 3574404

• References
• Source

• Patent Number

  3,574,404

• Date Filed

  Not available

• Date Issued

  Tuesday, April 13, 1971
  53 years ago

• CPC

  • E02F5/323 - Percussion-type rippers
  • E02F3/8883 - Using the force of explosions

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 037 - Excavating