2133979

Information

• Patent Grant
• 2133979

• References
• Source

• Patent Number

  2,133,979

• Date Filed

  Not available

• Date Issued

  Tuesday, October 25, 1938
  86 years ago

• CPC

  • F22B21/14 - involving a single upper drum and two or more lower drums

• US Classifications

  • 122 - Liquid heaters and vaporizers