3533121

Information

• Patent Grant
• 3533121

• References
• Source

• Patent Number

  3,533,121

• Date Filed

  Not available

• Date Issued

  Tuesday, October 13, 1970
  54 years ago

• CPC

  • E01B27/026 - by means of driven tools

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning
  • 104 - Railways