3380533

Information

• Patent Grant
• 3380533

• References
• Source

• Patent Number

  3,380,533

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1968
  56 years ago

• CPC

  • E21B33/00 - Sealing or packing boreholes or wells
  • Y10T137/5532 - Reciprocating relatively fixed valves
  • Y10T137/87169 - Supply and exhaust

• US Classifications

  • 166 - Wells
  • 137 - Fluid handling