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发明名称
Rohr aus abbindefaehigem Werkstoff, wie Beton, Zement-Faserstoff-Gemisch od. dgl.
摘要
申请公布号
DE848440(C)
申请公布日期
1952.09.04
申请号
DE1940D002439D
申请日期
1940.09.20
申请人
EISENWERKE GELSENKIRCHEN A. G.
发明人
BIEFANG PETER
分类号
B28B21/56
主分类号
B28B21/56
代理机构
代理人
主权项
地址
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