76247289
Apr 27, 2001
May 10, 2005
THREE DIMENSIONAL MODELS FOR EDUCATIONAL PURPOSES, NAMELY, ENVIRONMENTAL SIMULATION SYSTEM FOR EDUCATIONAL USE CONSISTING OF A SIMULATED LAND FORM ADAPTED TO BE USED IN COMBINATION WITH AND AQUARIUM AND PUMP TO DEMONSTRATE THE ENVIRONMENTAL AND GEOLOGICAL FUNCTION OF VARIOUS BODIES OF WATER
Paper Goods and Printed Matter