1972429

Information

• Patent Grant
• 1972429

• References
• Source

• Patent Number

  1,972,429

• Date Filed

  Not available

• Date Issued

  Tuesday, September 4, 1934
  90 years ago

• CPC

  • F23G5/05 - using drying grates

• US Classifications

  • 110 - Furnaces
  • 122 - Liquid heaters and vaporizers