沐鸣2:_北交所上市公司常辅股份新获专利：“一种双动力源阀门驱动装置”
北交所上市公司常辅股份（871396）新增专利信息，专利权人为常辅股份，发明人是周源、杨俊、曹超、朱海梅、朱自鹏。专利授权日为2022年11月22日，专利名称为“一种双动力源阀门驱动装置”，专利类型为中国实用新型专利，专利申请号为CN202221187910.1。
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