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自2006年中期开始,他一共完成25项专利设计,其中3项已由国家专利局授权并发给专利证书。谁能想到,在此之前他曾是监狱中有名的申诉“钉子户”?
Since mid-2006, he has completed a total of 25 patent designs, of which 3 have been authorized by the State Patent Office and issued a patent certificate. Who could have thought that prior to this he had been a famous complaint in the prison “nail households”?