1661589

Information

• Patent Grant
• 1661589

• References
• Source

• Patent Number

  1,661,589

• Date Filed

  Not available

• Date Issued

  Tuesday, March 6, 1928
  96 years ago

• CPC

  • H01J13/14 - Cooling, heating, circulating, filtering, or controlling level of the liquid
  • H01J61/30 - Vessels Containers
  • H01J2893/0084 - Protection against mercury deposition

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 174 - Electricity: conductors and insulators