U.S. federal trademark · Serial No. 73063542 · Reg. No. 1081666
EDUCATIONAL KITS, SAID SPECIMEN KITS COMPRISING ROUND OR DISC LIKE BOXES HAVING TWO PARTS, A COVER AND A LOWER BODY PART, THE LOWER PARTS EACH HAVING DIFFERENT INTERIOR CONFIGURATIONS CAPABLE OF DETERMINING, WHEN THE ASSEMBLY IS MANIPULATED BY HAND, THE GEOMETRIC PATH THAT A SMALL BALL MUST FOLLOW IN RESPECT TO THE INTERIOR CONFIGURATION OF THE SPECIFIC ITEM TESTED, USED IN SCHOOL CALSSROOMS TO DEVELOP POWERS OF OBSERVATION
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