2760766

Information

• Patent Grant
• 2760766

• References
• Source

• Patent Number

  2,760,766

• Date Filed

  Not available

• Date Issued

  Tuesday, August 28, 1956
  68 years ago

• CPC

  • E21D9/116 - by means of non-concentric rotary heads
  • Y10T74/1531 - Multiple acting

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 074 - Machine element or mechanism