2219504

Information

• Patent Grant
• 2219504

• References
• Source

• Patent Number

  2,219,504

• Date Filed

  Not available

• Date Issued

  Tuesday, October 29, 1940
  84 years ago

• CPC

  • E21B33/03 - Well heads Setting-up thereof
  • F16K3/08 - with circular plates rotatable around their centres
  • Y10T137/6161 - With provision of alternate wear parts
  • Y10T137/8326 - Fluid pressure responsive indicator, recorder or alarm

• US Classifications

  • 137 - Fluid handling
  • 138 - Pipes and tubular conduits
  • 251 - Valves and valve actuation