2073431

Information

• Patent Grant
• 2073431

• References
• Source

• Patent Number

  2,073,431

• Date Filed

  Not available

• Date Issued

  Tuesday, March 9, 1937
  87 years ago

• CPC

  • H01J61/18 - having a metallic vapour as the principal constituent
  • H01J61/14 - having one or more carbon compounds as the principal constituents

• US Classifications

  • 313 - Electric lamp and discharge devices