Mechanical toys, namely, hand-powered mechanical toys allowing the simultaneous control of multiple orbiting pendulums by whirling the pendulums in a compound circular motion, for use in amusement, juggling performance, and for educational use in teaching principals of physics

'allow':9 'amus':29 'circular':24 'compound':23 'control':12 'educ':34 'hand':5 'hand-pow':4 'juggl':30 'mechan':1,7 'motion':25 'multipl':14 'name':3 'orbit':15 'pendulum':16,20 'perform':31 'physic':40 'power':6 'princip':38 'simultan':11 'teach':37 'toy':2,8 'use':27,35 'whirl':18

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