2920540

Information

• Patent Grant
• 2920540

• References
• Source

• Patent Number

  2,920,540

• Date Filed

  Not available

• Date Issued

  Tuesday, January 12, 1960
  65 years ago

• CPC

  • E01C19/34 - Power-driven rammers or tampers

• US Classifications

  • 404 - Road structure, process, or apparatus
  • 104 - Railways