Improvements introduced in the system of construction of models for jugueteria. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements introduced in the construction system of models for toys with plastic construction elements equipped with undercut grooves and assembly nipples that fit in them, characterized in that the grooves have widens whose cross section corresponds to that of an assembly nipple and whose depth corresponds, at least, to the length of an assembly nipple. (Machine-translation by Google Translate, not legally binding)