3584406

Information

• Patent Grant
• 3584406

• References
• Source

• Patent Number

  3,584,406

• Date Filed

  Not available

• Date Issued

  Tuesday, June 15, 1971
  53 years ago

• CPC

  • E01B27/027 - Loosening ballasting material

• US Classifications

  • 037 - Excavating
  • 172 - Earth working