1791665

Information

• Patent Grant
• 1791665

• References
• Source

• Patent Number

  1,791,665

• Date Filed

  Not available

• Date Issued

  Tuesday, February 10, 1931
  94 years ago

• CPC

  • E21F13/065 - Scrapers

• US Classifications

  • 414 - Material or article handling
  • 037 - Excavating