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发明名称
Dalle de construction
摘要
申请公布号
FR1005650(A)
申请公布日期
1952.04.15
申请号
FRD1005650
申请日期
1947.09.01
申请人
发明人
KNACKSTEDT OTTO
分类号
E04C2/00
主分类号
E04C2/00
代理机构
代理人
主权项
地址
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