Ball-like construction for a toy or the like
Building element for a toy building set
Building element with internal stud-receiving means
Combinable toy blocks
Configured or keyed connector system
Configured or keyed connector system
Connecting device for toy construction elements
Construction element
Construction system
Construction system and applications thereof
Coupling mechanism for a toy building set
Detachable connecting device for toy-construction elements
Device with attachable toy building bricks
Flexible tube having a number of joints
Genderless construction system
Hermaphroditic (genderless) construction system
Interlocking blocks
Interlocking toy building blocks with interconnecting, releasabl
Interlocking toy components
Modular-design toy system