2918287

Information

• Patent Grant
• 2918287

• References
• Source

• Patent Number

  2,918,287

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1959
  65 years ago

• CPC

  • A63F9/10 - Two-dimensional jig-saw puzzles
  • A63F2009/1066 - completing a circuit if solved correctly
  • A63F2009/2489 - by radio transmitters

• US Classifications

  • 273 - Amusement devices: games
  • 200 - Electricity: circuit makers and breakers
  • 361 - Electricity: electrical systems and devices
  • 434 - Education and demonstration
  • 439 - Electrical connectors