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发明名称
摘要
申请公布号
DE2106218(C3)
申请公布日期
1981.02.26
申请号
DE19712106218
申请日期
1971.02.10
申请人
BOUWSTAAL ROERMOND N.V., ROERMOND (NIEDERLANDE)
发明人
BUYS, ADRIAAN, KROMMENIE (NIEDERLANDE)
分类号
B21D11/12;C21D9/50;(IPC1-7):E04C5/06;B21F31/00
主分类号
B21D11/12
代理机构
代理人
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