1847646

Information

• Patent Grant
• 1847646

• References
• Source

• Patent Number

  1,847,646

• Date Filed

  Not available

• Date Issued

  Tuesday, March 1, 1932
  92 years ago

• CPC

  • H01J13/06 - Cathodes
  • H01J13/14 - Cooling, heating, circulating, filtering, or controlling level of the liquid
  • H01J2893/0075 - Cathodic cups

• US Classifications

  • 313 - Electric lamp and discharge devices