1686761

Information

• Patent Grant
• 1686761

• References
• Source

• Patent Number

  1,686,761

• Date Filed

  Not available

• Date Issued

  Tuesday, October 9, 1928
  96 years ago

• CPC

  • F27D1/027 - Skew backs
  • F27D1/025 - Roofs supported around their periphery

• US Classifications

  • 110 - Furnaces
  • 122 - Liquid heaters and vaporizers