3468042

Information

• Patent Grant
• 3468042

• References
• Source

• Patent Number

  3,468,042

• Date Filed

  Not available

• Date Issued

  Tuesday, September 23, 1969
  55 years ago

• CPC

  • E01B27/025 - by means of non-driven tools

• US Classifications

  • 037 - Excavating
  • 015 - Brushing, scrubbing, and general cleaning