3568345

Information

• Patent Grant
• 3568345

• References
• Source

• Patent Number

  3,568,345

• Date Filed

  Not available

• Date Issued

  Tuesday, March 9, 1971
  54 years ago

• CPC

  • G09F11/12 - the display elements being carried by endless belts, chains, or the like
  • G09F11/34 - the feeding means comprising electromagnets

• US Classifications

  • 040 - Card, picture, or sign exhibiting