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发明名称
Rolling trough-shaped iron profiles for structural work in mines and the like
摘要
申请公布号
GB747433(A)
申请公布日期
1956.04.04
申请号
GB19530030270
申请日期
1953.11.02
申请人
BERGBAUSTAHL GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
发明人
JASPER KARL THEODOR
分类号
B21B1/08;E21D11/20
主分类号
B21B1/08
代理机构
代理人
主权项
地址
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