2219523

Information

• Patent Grant
• 2219523

• References
• Source

• Patent Number

  2,219,523

• Date Filed

  Not available

• Date Issued

  Tuesday, October 29, 1940
  84 years ago

• CPC

  • H05B3/48 - heating conductor embedded in insulating material
  • H01B7/16 - Rigid-tube cables
  • Y10T29/49083 - Heater type
  • Y10T29/49089 - Filling with powdered insulation
  • Y10T29/49092 - Powdering the insulation

• US Classifications

  • 029 - Metal working
  • 338 - Electrical resistors