2991911

Information

• Patent Grant
• 2991911

• References
• Source

• Patent Number

  2,991,911

• Date Filed

  Not available

• Date Issued

  Tuesday, July 11, 1961
  63 years ago

• CPC

  • A47L15/4445 - Detachable devices
  • D06F39/022 - in a liquid state
  • Y10T137/2788 - Control by filling auxiliary tank
  • Y10T137/7316 - Self-emptying tanks
  • Y10T137/86228 - With communicating opening in common walls of tanks or compartments

• US Classifications

  • 222 - Dispensing
  • 137 - Fluid handling