2965986

Information

• Patent Grant
• 2965986

• References
• Source

• Patent Number

  2,965,986

• Date Filed

  Not available

• Date Issued

  Tuesday, December 27, 1960
  64 years ago

• CPC

  • E01B27/027 - Loosening ballasting material
  • E01B27/025 - by means of non-driven tools

• US Classifications

  • 037 - Excavating
  • 104 - Railways