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经营范围
发明名称
Nachgiebiger eiserner Grubenstempel
摘要
申请公布号
DE520847(C)
申请公布日期
1931.03.14
申请号
DE1928SC88075D
申请日期
1928.10.27
申请人
LUDWIG BITTEL;ADOLF SCHANK;EMMA SCHANK GEB. STICHER
发明人
分类号
E21D15/38
主分类号
E21D15/38
代理机构
代理人
主权项
地址
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