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发明名称
VERFAHREN ZUM HERSTELLEN EINES BEWEHRUNGSKORBES FUER BETONMUFFENROHRE
摘要
申请公布号
DE1913482(B2)
申请公布日期
1977.05.12
申请号
DE19691913482
申请日期
1969.03.17
申请人
发明人
分类号
B21F27/12;B28B21/56;E04C5/06;F16L9/08;(IPC1-7):B21F31/00
主分类号
B21F27/12
代理机构
代理人
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地址
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