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经营范围
发明名称
Eiserner schraubenfoermiger Rundausbau
摘要
申请公布号
DE678423(C)
申请公布日期
1939.07.14
申请号
DE1937ST55914D
申请日期
1937.03.03
申请人
DIPL.-ING. WILHELM STRACK;BERNHARD RUEHL
发明人
STRACK DIPL.-ING. WILHELM;RUEHL BERNHARD
分类号
E21D11/18;E21D15/28
主分类号
E21D11/18
代理机构
代理人
主权项
地址
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