2756038

Information

• Patent Grant
• 2756038

• References
• Source

• Patent Number

  2,756,038

• Date Filed

  Not available

• Date Issued

  Tuesday, July 24, 1956
  68 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
  • 091 - Motors: expansible chamber type