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发明名称
DISPOSICION DE ABSORCION DE SONIDO.
摘要
申请公布号
ES256657(Y)
申请公布日期
1981.12.16
申请号
ES19570002566U
申请日期
1979.12.28
申请人
DAEMPA AS
发明人
分类号
E04B1/86;E04B1/84;(IPC1-7):04B1/86
主分类号
E04B1/86
代理机构
代理人
主权项
地址
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