3586333

Information

• Patent Grant
• 3586333

• References
• Source

• Patent Number

  3,586,333

• Date Filed

  Not available

• Date Issued

  Tuesday, June 22, 1971
  53 years ago

• CPC

  • A63F3/0415 - Number games
  • A63F2003/00757 - Planimetric shapes
  • A63F2009/064 - opaque

• US Classifications

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