3857609

Information

• Patent Grant
• 3857609

• References
• Source

• Patent Number

  3,857,609

• Date Filed

  Not available

• Date Issued

  Tuesday, December 31, 1974
  49 years ago

• CPC

  • E02F5/323 - Percussion-type rippers
  • Y10S37/904 - Vibration means for excavating tool

• US Classifications

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