3726563

Information

• Patent Grant
• 3726563

• References
• Source

• Patent Number

  3,726,563

• Date Filed

  Not available

• Date Issued

  Tuesday, April 10, 1973
  51 years ago

• CPC

  • E21C27/18 - by both slitting and planing
  • E21C27/08 - with additional means for cutting the mineral into blocks

• US Classifications

  • 299 - Mining or in situ disintegration of hard material