3206252

Information

• Patent Grant
• 3206252

• References
• Source

• Patent Number

  3,206,252

• Date Filed

  Not available

• Date Issued

  Tuesday, September 14, 1965
  59 years ago

• CPC

  • E21C27/126 - with slitting and breaking-down members situated in parallel on an intermediary level
  • E21C27/10 - by both slitting and breaking-down

• US Classifications

  • 299 - Mining or in situ disintegration of hard material