Electronic puzzle
Electronic puzzle device
Electronic puzzle game
Electronic puzzle game
Electronic spatial logical toy containing movable and/or rotatab
Electrostatic device and game
Eleven-plane cubical puzzle
Encoded image puzzle/decoder
Encoded image puzzle/decoder
Entertainment device
Entertainment kit
Escape mechanism for sliding block puzzles
Extendable cylindrical jigsaw puzzle
Extensible golfing device and ball retriever
Extension for rotatable puzzle piece