1989662

Information

• Patent Grant
• 1989662

• References
• Source

• Patent Number

  1,989,662

• Date Filed

  Not available

• Date Issued

  Tuesday, February 5, 1935
  89 years ago

• CPC

  • F27D15/0273 - on a rotary hearth

• US Classifications

  • 034 - Drying and gas or vapor contact with solids
  • 110 - Furnaces
  • 126 - Stoves and furnaces
  • 266 - Metallurgical apparatus
  • 432 - Heating