2294911

Information

• Patent Grant
• 2294911

• References
• Source

• Patent Number

  2,294,911

• Date Filed

  Not available

• Date Issued

  Tuesday, September 8, 1942
  82 years ago

• CPC

  • B66D1/16 - the drums or barrels being freely rotatable
  • B66D1/80 - for scrapers
  • E21C25/68 - Machines for making slits combined with equipment for removing
  • E21F13/065 - Scrapers

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 037 - Excavating