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A story of invention

Maggie sees Mustafa on his invention and decides that it has flaws. Each time Mustafa goes too fast round corners, his triboard tips, he stops suddenly, and trips over.

She decides his board would be more stable if there were four wheels with a wheel at each corner of the board. She also think the board will be easier to use if it's narrower, so she makes it longer and thinner. She patents this invention, the "Quadboard", and makes boards to sell to shops in her area.

However, because she improved Mustafa's design, she needs to ask his permission to use his patent. Mustafa agrees that Maggie should pay him 30% of her profits to use his patent.


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