1853806

Information

• Patent Grant
• 1853806

• References
• Source

• Patent Number

  1,853,806

• Date Filed

  Not available

• Date Issued

  Tuesday, April 12, 1932
  92 years ago

• CPC

  • G09F21/20 - illuminated
  • G09F11/02 - the display elements being secured to rotating members

• US Classifications

  • 040 - Card, picture, or sign exhibiting