1791955

Information

• Patent Grant
• 1791955

• References
• Source

• Patent Number

  1,791,955

• Date Filed

  Not available

• Date Issued

  Tuesday, February 10, 1931
  93 years ago

• CPC

  • F22B21/40 - built-up from water tubes arranged in a comparatively long vertical shaft

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 110 - Furnaces
  • 196 - Mineral oils: apparatus