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经营范围
发明名称
Mur d'amortissement et d'isolement du son
摘要
申请公布号
FR1089026(A)
申请公布日期
1955.03.14
申请号
FRD1089026
申请日期
1953.12.03
申请人
发明人
KOLLER ERNST
分类号
E04B2/74
主分类号
E04B2/74
代理机构
代理人
主权项
地址
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