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发明名称
AN ARRANGEMENT FOR DAMPING AND ABSORPTION OF SOUND IN ROOMS
摘要
申请公布号
PT72819(A)
申请公布日期
1981.05.01
申请号
PT19810072819
申请日期
1981.04.08
申请人
BYGGNADSFYSIK A & K AB
发明人
分类号
G10K11/16;E04B1/82;E04B1/84;E04B1/99;(IPC1-7):G10K/
主分类号
G10K11/16
代理机构
代理人
主权项
地址
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