3892443

Information

• Patent Grant
• 3892443

• References
• Source

• Patent Number

  3,892,443

• Date Filed

  Not available

• Date Issued

  Tuesday, July 1, 1975
  49 years ago

• CPC

  • E21C35/20 - General features of equipment for removal of chippings
  • E21C27/20 - Mineral freed by means not involving slitting

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 198 - Conveyors: power-driven