1918725

Information

• Patent Grant
• 1918725

• References
• Source

• Patent Number

  1,918,725

• Date Filed

  Not available

• Date Issued

  Tuesday, July 18, 1933
  91 years ago

• CPC

  • H05B31/0012 - with a plurality of electrode pairs

• US Classifications

  • 362 - Illumination
  • 174 - Electricity: conductors and insulators