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发明名称
Parpaing aggloméré à ergots alternés
摘要
申请公布号
FR991450(A)
申请公布日期
1951.10.05
申请号
FRD991450
申请日期
1949.07.28
申请人
发明人
LAURENT FERNAND
分类号
E04B2/02;E04B2/42
主分类号
E04B2/02
代理机构
代理人
主权项
地址
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