2160823

Information

• Patent Grant
• 2160823

• References
• Source

• Patent Number

  2,160,823

• Date Filed

  Not available

• Date Issued

  Tuesday, June 6, 1939
  85 years ago

• CPC

  • H01H43/308 - based on the change of electrical properties

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 219 - Electric heating
  • 338 - Electrical resistors