2974957

Information

• Patent Grant
• 2974957

• References
• Source

• Patent Number

  2,974,957

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1961
  64 years ago

• CPC

  • A63F9/0803 - Two-dimensional puzzles with slideable or rotatable elements or groups of elements, the main configuration remaining unchanged
  • A63F2250/245 - with a key

• US Classifications

  • 273 - Amusement devices: games