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发明名称
Verfahren zur Herstellung von Rohren und Kanaelen aus Beton oder Eisenbeton
摘要
申请公布号
DE536157(C)
申请公布日期
1931.10.20
申请号
DE1927A052633D
申请日期
1927.12.01
申请人
AKTIENGESELLSCHAFT FUER SPEZIALBAUTEN
发明人
分类号
B28B21/42
主分类号
B28B21/42
代理机构
代理人
主权项
地址
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