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Teng Lianzhi v. Qinhuangdao Tonghai Technology Development Co., Ltd. of requesting to declare "A Machine That Makes Fried and Deoiling in Vacuum "util
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Teng Lianzhi v. Qinhuangdao Tonghai Technology Development Co., Ltd. of requesting to declare "A Machine That Makes Fried and Deoiling in Vacuum "utility model patent invalid
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