3887237

Information

• Patent Grant
• 3887237

• References
• Source

• Patent Number

  3,887,237

• Date Filed

  Not available

• Date Issued

  Tuesday, June 3, 1975
  49 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
  • 102 - Ammunition and explosives
  • 172 - Earth working