公开(公告)号：US5167507A

公开(公告)日：1992-12-01

申请号：US698088

申请日：1991-05-10

申请人： Nicola J. Cobb ,  David J. Cragie

发明人： Nicola J. Cobb ,  David J. Cragie

IPC分类号： G09B19/12

CPC分类号： G09B19/12

摘要： The invention relates to an eductional aid for teaching children to tell the time. The aid includes a face and at least one pointer rotatable about a centrally disposed axis relative to the face. A carrier is provided which carries indicia which are position behind the face. The face includes apertures through which at least some of the indicia can be seen. A knob for moving said carrier is also provided so that the indicia may be selectively displayed through the apertures.

摘要翻译： 本发明涉及教导儿童告诉时间的教育辅助。 该辅助装置包括面部和至少一个相对于面部围绕中心布置的轴线旋转的指针。 提供载体，其携带位于面部后面的标记。 面部包括孔，通过该孔可以看到至少一些标记。 还提供了用于移动所述载体的旋钮，使得可以通过孔选择性地显示标记。