3800664

Information

• Patent Grant
• 3800664

• References
• Source

• Patent Number

  3,800,664

• Date Filed

  Not available

• Date Issued

  Tuesday, April 2, 1974
  50 years ago

• CPC

  • E21C37/22 - Hand tools or hand-held power-operated tools specially adapted for dislodging minerals
  • B25D9/12 - comprising a built-in liquid motor
  • B25D9/145 - for hydraulically actuated hammers having an accumulator
  • Y10S173/04 - Liquid operated

• US Classifications

  • 091 - Motors: expansible chamber type
  • 173 - Tool driving or impacting