621448

Information

• Patent Grant
• 621448

• References
• Source

• Patent Number

  621,448

• Date Filed

  Not available

• Date Issued

  Tuesday, March 21, 1899
  125 years ago

• CPC

  • F16K27/006 - of hydrants
  • Y10T137/7006 - Vertical casing aligned by valve casing
  • Y10T137/7017 - Telescopic well casing
  • Y10T137/7021 - Covers

• US Classifications

  • 137 - Fluid handling
  • 285 - Pipe joints or couplings