1917617

Information

• Patent Grant
• 1917617

• References
• Source

• Patent Number

  1,917,617

• Date Filed

  Not available

• Date Issued

  Tuesday, July 11, 1933
  91 years ago

• CPC

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

• US Classifications

  • 122 - Liquid heaters and vaporizers