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Marketing-concept that makes people spare time and makes restaurants win money: the « fast-pass » for fast-food-restaurants (and restaurants in general).
The restaurant wins money without selling any product, but only by proposing an option.
An anti theft and anti vandal toilet roll dispenser for public washrooms as seen at www.rollfast.info
My Egg Cracker invention is now under licence in the United States, thanks to my listing on your inventions page. – John O.