Open-closed water seal value,申请号GB20010000723-传众专利搜索

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发明名称	Open-closed water seal value
摘要
申请公布号	GB0100723(D0)	申请公布日期	2001.02.21
申请号	GB20010000723	申请日期	2001.01.11
申请人	TOPEN, JOHN S	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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