2423645

Information

• Patent Grant
• 2423645

• References
• Source

• Patent Number

  2,423,645

• Date Filed

  Not available

• Date Issued

  Tuesday, July 8, 1947
  77 years ago

• CPC

  • B42F17/343 - with sliding movement of selected cards

• US Classifications

  • 040 - Card, picture, or sign exhibiting