Gelonghui, May 22丨Deshi Co., Ltd. (301158.SZ) announced that the company recently obtained 3 invention patent certificates issued by the State Intellectual Property Office, which are integrated single-acting hydraulic reciprocating pumps, hydraulic oscillators, and hydraulic oscillators.
德石股份(301158.SZ)：取得国家知识产权局颁发的发明专利证书3项
Deshi Co., Ltd. (301158.SZ): Obtained 3 invention patent certificates issued by the State Intellectual Property Office
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