1438973

Information

• Patent Grant
• 1438973

• References
• Source

• Patent Number

  1,438,973

• Date Filed

  Not available

• Date Issued

  Tuesday, December 19, 1922
  102 years ago

• CPC

  • F16T1/12 - with valves controlled by excess or release of pressure
  • Y10S122/15 - Valves
  • Y10T137/2557 - Waste responsive to flow stoppage

• US Classifications

  • 137 - Fluid handling
  • 122 - Liquid heaters and vaporizers