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10-year-old girl earns 40 million yuan annually with just 3,000 yuan!
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A comb specially designed for black people, backed by 3 invention patents
Digging a hole in the mattress is protected by two invention patents!
A tough guy invented three circles in ten years and protected them with five patents
The weirder the patent, the more successful the crowdfunding campaign!
How to surround the copycat sellers with two invention patents?
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