"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
|6540580||Yo yo having removable toy figures and container playset|
A yo yo toy is formed of a pair of substantially disk-shaped body halves joined in a spaced arrangement by a center shaft. A quantity of string is secured to the center shaft and wound within the space. Each body half includes a receptacle and a cover piv...
|6066023||Yo-yo with laser emission means|
A yo-yo with laser emission means mainly includes two side covers each defining a hollow space for accommodating a middle disc therein. The middle discs are provided at their outward-facing surfaces each with a seat for separately receiving a laser emissi...
|5984759||Yo-yos and an improved automatically returning yo-yo|
Improvements in automatically returning yo-yos in which an effective centripetal/centrifugal movement, vector, signal and/or urge of one or more parts of the yo-yo is translated or allowed to be translated into an effectively reciprocating movement, vecto...
|4327518||Inertial device for sight and sound effects in rotating apparatus|
An inertia device which controls and produces a sensory effect as a function of a differential in the angular velocities between primary and secondary bodies rotating on a common axis with a friction drive therebetween, commutated by differential speeds o...
|4081924||Yo-yo toy carrying an additional member|
A yo-yo toy including two circular blocks joined by a pin having a string wound around it. An additional member has portions rotatably mounted on the outer faces of the blocks, so that the additional member moves up and down with the blocks as the yo-yo i...