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"PARKWAY PLASTICS, INC."
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Plastic Pulley Triple Parallel
Economical pulley for simple machine experiments.
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Plastic Pulley Double Tandem 50 and 38 mm
Economical pulley for simple machine experiments.
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Plastic Pulley Triple Long
Economical pulley for simple machine experiments.
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Plastic Pulley Single
Economical pulley for simple machine experiments.
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Plastic Pulley Double
Economical pulley for simple machine experiments.
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Plastic Pulley Triple
Economical pulley for simple machine experiments.
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Differential Pulley Economy
Economical pulley for simple machine experiments.
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Metal Pulley with Clamp
Plastic pulley with metal clamp, includes knob for tightening.
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Demonstration Pulleys
Jumbo-Sized Pulleys are Designed for Classroom Demonstrations
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Cyclone Gyroscope
A redefined and extremely robust hand-held gyroscope.
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Eisco® High-Speed Low Friction Pulley on Rod
High-speed pulley with low friction design mounted on a rod for easy integration into experiments.
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Eisco Uniform Motion Vehicle
Switch between two different speeds for this powered uniform motion car.
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Variable Inertia Apparatus, Transparent
Explore rotational acceleration with this pair of variable inertia disks.