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	Interface	Description
	IProduct	Defines a set of getter / setter methods implemented by Product classes All instances of subclasses which extend Product can only be typed as an IProduct Sub classes of Product can only be accessed via ProductFactory

	Class	Description
	ProductFactory	Application specific Factory Pattern implementation which defines an API that handles Product subclass instantiation
	ProductFactoryInstantiationError	ProductFactory API illegal instantiation Error class
	ProductFactoryType	Provides a set of static constants which define legal types in ProductFactory
	ProductFactoryTypeError	ProductFactory API illegal type Error class