1832413

Information

• Patent Grant
• 1832413

• References
• Source

• Patent Number

  1,832,413

• Date Filed

  Not available

• Date Issued

  Tuesday, November 17, 1931
  93 years ago

• CPC

  • G09F13/0404 - the light source being enclosed in a box forming the character of the sign
  • H01K7/04 - for indicating
  • H01K9/00 - Lamps having two or more incandescent bodies separately heated
  • Y10S362/808 - Figure

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 362 - Illumination