1789799

Information

• Patent Grant
• 1789799

• References
• Source

• Patent Number

  1,789,799

• Date Filed

  Not available

• Date Issued

  Tuesday, January 20, 1931
  93 years ago

• CPC

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

• US Classifications

  • 122 - Liquid heaters and vaporizers