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发明名称
Perfectionnements aux supports extensibles
摘要
申请公布号
FR967268(A)
申请公布日期
1950.10.30
申请号
FRD967268
申请日期
1948.05.27
申请人
发明人
LACOUR MICHEL
分类号
E04G25/06;E21D15/20;E21D15/54
主分类号
E04G25/06
代理机构
代理人
主权项
地址
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