3848931

Information

• Patent Grant
• 3848931

• References
• Source

• Patent Number

  3,848,931

• Date Filed

  Not available

• Date Issued

  Tuesday, November 19, 1974
  50 years ago

• CPC

  • E21B10/36 - Percussion drill bits
  • B25D17/02 - Percussive tool bits
  • B25D17/046 - Sleeve-like handles surrounding the tool bit
  • Y10S173/02 - Sound muffling
  • Y10T279/17102 - Sleeve in socket

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 173 - Tool driving or impacting
  • 175 - Boring or penetrating the earth
  • 181 - Acoustics
  • 279 - Chucks or sockets