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发明名称
Perfectionnements apportés aux procédés et dispositifs pour fabriquer des éléments de construction creux dont les éléments sont fermées à une extrémité
摘要
申请公布号
FR695324(A)
申请公布日期
1930.12.13
申请号
FRD695324
申请日期
1930.05.08
申请人
OESTERR. AVANGESELLSCHAFT AVANZINI & CO.
发明人
分类号
B28B11/00;B28B11/16
主分类号
B28B11/00
代理机构
代理人
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