2439583

Information

• Patent Grant
• 2439583

• References
• Source

• Patent Number

  2,439,583

• Date Filed

  Not available

• Date Issued

  Tuesday, April 13, 1948
  76 years ago

• CPC

  • A63F9/10 - Two-dimensional jig-saw puzzles
  • A63F2003/00321 - shaped as an endless belt
  • A63F2003/00331 - with two or more slidable parts
  • A63F2003/00337 - in perpendicular directions

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • 273 - Amusement devices: games
  • 434 - Education and demonstration
  • D19 - Office supplies