2152993

Information

• Patent Grant
• 2152993

• References
• Source

• Patent Number

  2,152,993

• Date Filed

  Not available

• Date Issued

  Tuesday, April 4, 1939
  85 years ago

• CPC

  • H01K11/00 - Lamps having an incandescent body which is not conductively heated

• US Classifications

  • 313 - Electric lamp and discharge devices