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发明名称
Verstaerktes Herzstueck
摘要
申请公布号
DE1759294(A1)
申请公布日期
1971.06.03
申请号
DE19681759294
申请日期
1968.04.18
申请人
ACIERIES DE PARIS & D'OUTREAU S.A.
发明人
PERROT,ROBERT
分类号
E01B7/12
主分类号
E01B7/12
代理机构
代理人
主权项
地址
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