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发明名称
半环垫圈
摘要
后视图与主视图对称,省略后视图。
申请公布号
CN3420047D
申请公布日期
2005.01.19
申请号
CN200430024703.5
申请日期
2004.06.14
申请人
张月明
发明人
张月明
分类号
13-03
主分类号
13-03
代理机构
代理人
主权项
地址
201321 上海市南汇区黄路镇郭店村470号
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