2570594

Information

• Patent Grant
• 2570594

• References
• Source

• Patent Number

  2,570,594

• Date Filed

  Not available

• Date Issued

  Tuesday, October 9, 1951
  73 years ago

• CPC

  • G09F11/30 - the display elements being fed one by one from storage place to a display position
  • Y10T74/1552 - Spring or weight return

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • 074 - Machine element or mechanism