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发明名称
Perfectionnements aux éléments de construction et analogues
摘要
申请公布号
FR923543(A)
申请公布日期
1947.07.09
申请号
FRD923543
申请日期
1946.03.11
申请人
DUFAY CHROMEX LIMITED
发明人
DAPONTE DEMETRE
分类号
E04F13/04
主分类号
E04F13/04
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