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发明名称
止回阀
摘要
省略后视图、左视图、右视图。
申请公布号
CN3345647D
申请公布日期
2004.01.07
申请号
CN03309158.7
申请日期
2003.05.03
申请人
董服义
发明人
董服义
分类号
23-01
主分类号
23-01
代理机构
代理人
主权项
地址
317600浙江省玉环县城关镇鳝湾
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