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发明名称
套管圆球
摘要
左视图和右视图对称,省略右视图。
申请公布号
CN3231953D
申请公布日期
2002.04.17
申请号
CN01342760.1
申请日期
2001.10.24
申请人
徐文现
发明人
徐文现
分类号
06-99
主分类号
06-99
代理机构
北京集佳专利商标事务所
代理人
张海旭
主权项
地址
510660广东省广州市天河区东圃镇黄村工业区
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