521664

Information

• Patent Grant
• 521664

• References
• Source

• Patent Number

  521,664

• Date Filed

  Not available

• Date Issued

  Tuesday, June 19, 1894
  130 years ago

• CPC

  • F23N3/02 - Regulating draught by direct pressure operation of single valves or dampers
  • Y10T137/7814 - Reactor is an inverted cup having liquid seal

• US Classifications

  • 137 - Fluid handling