1661309

Information

• Patent Grant
• 1661309

• References
• Source

• Patent Number

  1,661,309

• Date Filed

  Not available

• Date Issued

  Tuesday, March 6, 1928
  96 years ago

• CPC

  • F27D1/04 - characterised by the form
  • F27D1/00 - Casings Linings Walls Roofs
  • F27B9/084 - the muffle being fixed and in a single piece
  • F27D2001/005 - Removable part or structure with replaceable elements

• US Classifications

  • 432 - Heating