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发明名称
REFLECTIVE ACOUSTICAL DAMPING DEVICE FOR ROOMS
摘要
申请公布号
SG20389(G)
申请公布日期
1989.09.01
申请号
SG19890000203
申请日期
1989.04.01
申请人
ARTHUR MANDARICH NOXON
发明人
分类号
G10K11/16;E04B1/82;E04B1/84;E04B1/99;(IPC1-7):G10K11/16
主分类号
G10K11/16
代理机构
代理人
主权项
地址
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