It is a set of 21 copyright video tapes in 16 languages of "how we taught our infant to read", parts 1 2 & 3 etc "how we taught our infant physics", parts 1 2 & 3 etc "how we taught our infant chemistry", parts 1 2 & 3 etc, "how we taught our infant biology", parts 1 2 & 3 etc, "how we taught our infant algebra" parts 1 2 & 3, "how we taught our infant to use a computer", parts 1 2 & 3 etc, and "how we taught our infant music" parts 1 2 & 3 etc, all which are teaching and learning aids

Television services being concerned with the production of c ommercials, trade presentations, documentaries and the recor ding of video tapes connected therewith

Liquid handling rotary positive displacement pumps, centrifugal pumps and turbine pumps included in this class, but excluding pumps for agricultural use