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发明名称
Spreizkern zur Herstellung von Hohlkoerpern aus Beton od. dgl.
摘要
申请公布号
DE1058903(B)
申请公布日期
1959.06.04
申请号
DE1958N015061
申请日期
1958.05.10
申请人
N. V. SCHOKBETON
发明人
VOS ALBERT CORNELIS
分类号
B28B7/30
主分类号
B28B7/30
代理机构
代理人
主权项
地址
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