1553663

Information

• Patent Grant
• 1553663

• References
• Source

• Patent Number

  1,553,663

• Date Filed

  Not available

• Date Issued

  Tuesday, September 15, 1925
  99 years ago

• CPC

  • H01J13/14 - Cooling, heating, circulating, filtering, or controlling level of the liquid
  • H01J61/58 - Lamps with both liquid anode and liquid cathode
  • H01J2893/0083 - Liquid electrode level control

• US Classifications

  • 313 - Electric lamp and discharge devices