2909231

Information

• Patent Grant
• 2909231

• References
• Source

• Patent Number

  2,909,231

• Date Filed

  Not available

• Date Issued

  Tuesday, October 20, 1959
  65 years ago

• CPC

  • E01C19/466 - Solid materials

• US Classifications

  • 171 - Unearthing plants or buried objects