1994423

Information

• Patent Grant
• 1994423

• References
• Source

• Patent Number

  1,994,423

• Date Filed

  Not available

• Date Issued

  Tuesday, March 12, 1935
  89 years ago

• CPC

  • F24B1/24 - with built-in masses for heat storage or heat insulation

• US Classifications

  • 126 - Stoves and furnaces