2776631

Information

• Patent Grant
• 2776631

• References
• Source

• Patent Number

  2,776,631

• Date Filed

  Not available

• Date Issued

  Tuesday, January 8, 1957
  68 years ago

• CPC

  • F27D1/1858 - Doors
  • F27D2001/1875 - Hanging doors and walls

• US Classifications

  • 110 - Furnaces
  • 122 - Liquid heaters and vaporizers
  • 126 - Stoves and furnaces