1643745

Information

• Patent Grant
• 1643745

• References
• Source

• Patent Number

  1,643,745

• Date Filed

  Not available

• Date Issued

  Tuesday, September 27, 1927
  97 years ago

• CPC

  • F24H7/0208 - with electrical energy supply

• US Classifications

  • 126 - Stoves and furnaces
  • 219 - Electric heating
  • 237 - Heating systems