3400672

Information

• Patent Grant
• 3400672

• References
• Source

• Patent Number

  3,400,672

• Date Filed

  Not available

• Date Issued

  Tuesday, September 10, 1968
  56 years ago

• CPC

  • F27D1/148 - Means to suspend bricks
  • F23M5/06 - Crowns or roofs for combustion chambers
  • F27D1/021 - Suspended roofs
  • Y10S411/921 - Multiple-pronged nail, spike or tack

• US Classifications

  • 110 - Furnaces
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener