454140

Information

• Patent Grant
• 454140

• References
• Source

• Patent Number

  454,140

• Date Filed

  Not available

• Date Issued

  Tuesday, June 16, 1891
  133 years ago

• CPC

  • F22D7/02 - Saddles or like directing plates fitted to furnace tubes

• US Classifications

  • 122 - Liquid heaters and vaporizers