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发明名称
Verlaengerung fuer Grubenstempel
摘要
申请公布号
DE919705(C)
申请公布日期
1954.11.02
申请号
DE1951G005754
申请日期
1951.04.24
申请人
GUTEHOFFNUNGSHUETTE STERKRADE AKTIENGESELLSCHAFT
发明人
HUSSMANN WILHELM;LAERMANN KURT;KREBBER WILLI
分类号
E21D15/52
主分类号
E21D15/52
代理机构
代理人
主权项
地址
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