1538928

Information

• Patent Grant
• 1538928

• References
• Source

• Patent Number

  1,538,928

• Date Filed

  Not available

• Date Issued

  Tuesday, May 26, 1925
  99 years ago

• CPC

  • F22B21/126 - involving more than two lower or upper drums

• US Classifications

  • 122 - Liquid heaters and vaporizers