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发明名称
Bruecke
摘要
申请公布号
DE917429(C)
申请公布日期
1954.09.02
申请号
DE1941P002038D
申请日期
1941.05.10
申请人
DR. KURT PRANGE
发明人
BECKER EMIL
分类号
E01D2/00
主分类号
E01D2/00
代理机构
代理人
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