3820264

Information

• Patent Grant
• 3820264

• References
• Source

• Patent Number

  3,820,264

• Date Filed

  Not available

• Date Issued

  Friday, June 28, 1974
  50 years ago

• CPC

  • B42F17/346 - with pivoting movement of selected cards

• US Classifications

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