3302311

Information

• Patent Grant
• 3302311

• References
• Source

• Patent Number

  3,302,311

• Date Filed

  Not available

• Date Issued

  Tuesday, February 7, 1967
  57 years ago

• CPC

  • A63F9/12 - Three-dimensional jig-saw puzzles
  • A63F9/1204 - Puzzles consisting of non-interlocking identical blocks
  • A63F2009/0035 - on a pedestal or stand
  • A63F2009/1264 - all pegs being parallel

• US Classifications

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