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经营范围
发明名称
Cadre de soutènement, utilisable notamment dans les mines
摘要
申请公布号
FR1177681(A)
申请公布日期
1959.04.28
申请号
FRD1177681
申请日期
1957.07.02
申请人
发明人
SCHMID FRANZ
分类号
E21D23/00
主分类号
E21D23/00
代理机构
代理人
主权项
地址
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