2474473

Information

• Patent Grant
• 2474473

• References
• Source

• Patent Number

  2,474,473

• Date Filed

  Not available

• Date Issued

  Tuesday, June 28, 1949
  75 years ago

• CPC

  • H01C3/04 - Iron-filament ballast resistors Other resistors having variable temperature coefficient
  • C22C19/07 - based on cobalt

• US Classifications

  • 338 - Electrical resistors
  • 313 - Electric lamp and discharge devices
  • 420 - Alloys or metallic compositions