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经营范围
发明名称
MINE SUPPORT
摘要
申请公布号
ZA8203922(B)
申请公布日期
1983.01.26
申请号
ZA19820003922
申请日期
1982.06.04
申请人
LEUCHARS & HEPBURN LTD HUNT
发明人
SPEARING ANTHONY JOHN SPENCER
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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