3116914

Information

• Patent Grant
• 3116914

• References
• Source

• Patent Number

  3,116,914

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1964
  61 years ago

• CPC

  • E21C27/26 - by closely adjacent cutter chains acting on the full working face

• US Classifications

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