3707287

Information

• Patent Grant
• 3707287

• References
• Source

• Patent Number

  3,707,287

• Date Filed

  Not available

• Date Issued

  Tuesday, December 26, 1972
  52 years ago

• CPC

  • A63F9/10 - Two-dimensional jig-saw puzzles
  • A63F9/0604 - based on the use of colours
  • A63F2009/1005 - with images on both sides

• US Classifications

  • 273 - Amusement devices: games
  • 434 - Education and demonstration