73110670
Dec 27, 1976
Feb 19, 1980
EXPERIMENTAL KITS COMPRISING PYRAMID CARDBOARD AND METAL COMPONENTS, BOOKLET, SEEDS, MARINE EGGS, PLANTER TRAYS, SOIL MAGNETS, IRON DUST, COMPASS, SLIDE CALCULATORS AND POCKET COMPASSES FOR USE IN TESTING PYRAMID ENERGIES
Electrical and Scientific ApparatusINSTRUCTIONAL AND TEACHING MATERIALS-NAMELY, CONSTRUCTION KITS COMPRISING METAL AND CARDBOARD COMPONENTS FOR ERECTING PYRAMIDS
Paper Goods and Printed Matter