3151912

Information

• Patent Grant
• 3151912

• References
• Source

• Patent Number

  3,151,912

• Date Filed

  Not available

• Date Issued

  Tuesday, October 6, 1964
  60 years ago

• CPC

  • E21C27/32 - by adjustable or non-adjustable planing means with or without loading arrangements
  • E21C27/35 - Ram-ploughs
  • E21C27/46 - by percussed planing means

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 173 - Tool driving or impacting