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发明名称
Kappe aus Stahl oder Leichtmetall zum Vorpfänden im Grubenbetrieb
摘要
申请公布号
AT180251(B)
申请公布日期
1954.11.25
申请号
ATD180251
申请日期
1953.01.15
申请人
GUTEHOFFNUNGSHUETTE OBERHAUSEN AKTIENGESELLSCHAFT
发明人
分类号
主分类号
代理机构
代理人
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