451094

Information

• Patent Grant
• 451094

• References
• Source

• Patent Number

  451,094

• Date Filed

  Not available

• Date Issued

  Tuesday, April 28, 1891
  134 years ago

• CPC

  • F22B17/04 - the water-tube sets being inclined in opposite directions
  • Y10T74/19405 - Multiple forward and reverse

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 074 - Machine element or mechanism