3444841

Information

• Patent Grant
• 3444841

• References
• Source

• Patent Number

  3,444,841

• Date Filed

  Not available

• Date Issued

  Tuesday, May 20, 1969
  55 years ago

• CPC

  • F22B37/105 - Penetrations of tubes through a wall and their sealing
  • F22B37/66 - involving vertically-disposed water tubes

• US Classifications

  • 122 - Liquid heaters and vaporizers