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经营范围
发明名称
Apparatus for testing pit-props
摘要
申请公布号
GB797663(A)
申请公布日期
1958.07.09
申请号
GB19540010801
申请日期
1954.04.13
申请人
WILLY EGGEMANN;EBERHARD VON CAMPENHAUSEN
发明人
HEUSNER WILHELM
分类号
E21D15/46
主分类号
E21D15/46
代理机构
代理人
主权项
地址
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