1778776

Information

• Patent Grant
• 1778776

• References
• Source

• Patent Number

  1,778,776

• Date Filed

  Not available

• Date Issued

  Tuesday, October 21, 1930
  94 years ago

• CPC

  • F27D1/021 - Suspended roofs
  • F27D1/027 - Skew backs

• US Classifications

  • 110 - Furnaces
  • 122 - Liquid heaters and vaporizers