Improvements in Blocks for Teaching and for Childrens Toys.

摘要

18,335. Koppermann, W. A. Aug. 25. Drawings to Specification. Educational appliances; geometry, teaching.-Relates to toys adapted to develop a child's perceptive power for geometrical forms, and also the colour sense. A number of variously - coloured bodies of elementary and complex geometrical form are adapted to be combined with one another to form more or less complicated geometrical shapes in one or more colours.