3907367

Information

• Patent Grant
• 3907367

• References
• Source

• Patent Number

  3,907,367

• Date Filed

  Not available

• Date Issued

  Tuesday, September 23, 1975
  49 years ago

• CPC

  • E21C27/02 - solely by slitting
  • E21C27/08 - with additional means for cutting the mineral into blocks

• US Classifications

  • 299 - Mining or in situ disintegration of hard material