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发明名称
MINE PROP OR LIKE SUPPORT
摘要
申请公布号
ZA8908173(B)
申请公布日期
1991.02.27
申请号
ZA19890008173
申请日期
1989.10.27
申请人
DERGLEN CC.
发明人
RONALD COHEN
分类号
E21D
主分类号
E21D
代理机构
代理人
主权项
地址
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