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发明名称
Nachgiebiger Grubenstempel
摘要
申请公布号
DE828690(C)
申请公布日期
1952.01.21
申请号
DE1949M001054
申请日期
1949.12.18
申请人
EDMUND MUEHLFELD
发明人
MUEHLFELD EDMUND
分类号
E21D15/32
主分类号
E21D15/32
代理机构
代理人
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地址
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