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经营范围
发明名称
Matériau insonore et son procédé de fabrication
摘要
申请公布号
FR725276(A)
申请公布日期
1932.05.10
申请号
FRD725276
申请日期
1931.01.02
申请人
发明人
MOUTARD EDMOND-MARTIAL
分类号
E04C2/24
主分类号
E04C2/24
代理机构
代理人
主权项
地址
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