3816949

Information

• Patent Grant
• 3816949

• References
• Source

• Patent Number

  3,816,949

• Date Filed

  Not available

• Date Issued

  Tuesday, June 18, 1974
  51 years ago

• CPC

  • B42F17/346 - with pivoting movement of selected cards

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • D19 - Office supplies