个人呼吸保护装置,申请号CN97304644.9-传众专利搜索

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发明名称	个人呼吸保护装置
摘要
申请公布号	CN3088831D	申请公布日期	1998.10.28
申请号	CN97304644.9	申请日期	1997.05.21
申请人	美国3M公司	发明人	德斯蒙德Ｔ·柯伦;克里斯托弗Ｐ·亨德森;约翰Ｗ·布赖恩特
分类号	24-02-O0069	主分类号	24-02-O0069
代理机构	上海专利商标事务所	代理人	任永武
主权项
地址	美国明尼苏达州

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