2109269

Information

• Patent Grant
• 2109269

• References
• Source

• Patent Number

  2,109,269

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1938
  87 years ago

• CPC

  • F24H9/12 - Connecting heaters to circulation pipes
  • C09B7/08 - Other indole-indigos
  • Y10T137/3105 - Self-emptying
  • Y10T137/7873 - Ball valves
  • Y10T137/87555 - Having direct response valve [e.g., check valve, etc.]

• US Classifications

  • 137 - Fluid handling