451813

Information

• Patent Grant
• 451813

• References
• Source

• Patent Number

  451,813

• Date Filed

  Not available

• Date Issued

  Tuesday, May 5, 1891
  133 years ago

• CPC

  • F22B5/02 - with auxiliary water tubes outside the boiler body

• US Classifications

  • 122 - Liquid heaters and vaporizers