449390

Information

• Patent Grant
• 449390

• References
• Source

• Patent Number

  449,390

• Date Filed

  Not available

• Date Issued

  Tuesday, March 31, 1891
  133 years ago

• CPC

  • E03F5/0402 - provided with flushing means for cleaning or emptying
  • A01K1/0103 - of liquid manure
  • Y10T137/2808 - Through float-operated vent
  • Y10T137/741 - Within tank
  • Y10T137/7475 - With toggle or second lever connected to valve

• US Classifications

  • 137 - Fluid handling
  • 251 - Valves and valve actuation