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发明名称
球阀
摘要
申请公布号
CN3112717D
申请公布日期
1999.06.09
申请号
CN98323867.7
申请日期
1998.07.30
申请人
董服义
发明人
董服义
分类号
23-01-V0009
主分类号
23-01-V0009
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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