472731

Information

• Patent Grant
• 472731

• References
• Source

• Patent Number

  472,731

• Date Filed

  Not available

• Date Issued

  Tuesday, April 12, 1892
  132 years ago

• CPC

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

• US Classifications

  • 122 - Liquid heaters and vaporizers