3896889

Information

• Patent Grant
• 3896889

• References
• Source

• Patent Number

  3,896,889

• Date Filed

  Not available

• Date Issued

  Tuesday, July 29, 1975
  50 years ago

• CPC

  • F01B11/06 - for generating vibration only
  • F01L21/04 - Valves arranged in or on piston or piston-rod

• US Classifications

  • 173 - Tool driving or impacting
  • 091 - Motors: expansible chamber type
  • 092 - Expansible chamber devices
  • 175 - Boring or penetrating the earth