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发明名称
Aggloméré de construction creux
摘要
申请公布号
FR889298(A)
申请公布日期
1944.01.05
申请号
FRD889298
申请日期
1942.12.19
申请人
发明人
COURTY LEON
分类号
E04B2/02;E04B2/14
主分类号
E04B2/02
代理机构
代理人
主权项
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