2240812

Information

• Patent Grant
• 2240812

• References
• Source

• Patent Number

  2,240,812

• Date Filed

  Not available

• Date Issued

  Tuesday, May 6, 1941
  83 years ago

• CPC

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

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 431 - Combustion