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发明名称
Cadre de soutènement
摘要
申请公布号
FR1215497(A)
申请公布日期
1960.04.19
申请号
FR19590785856
申请日期
1959.02.05
申请人
GELSENKIRCHENER BERGWERKS AKTIENGESELLSCHAFT
发明人
分类号
E21D11/20
主分类号
E21D11/20
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