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发明名称
Corps creux à plusieurs chambres et procédé de fabrication de ce corps creux à partir de feuillards
摘要
申请公布号
BE612829(A1)
申请公布日期
1962.05.16
申请号
BE19620612829
申请日期
1962.01.19
申请人
DRIAM S.A.
发明人
WILHELM ECKARDT
分类号
(IPC1-7):F22B;B21C
主分类号
(IPC1-7):F22B
代理机构
代理人
主权项
地址
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