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发明名称
ANORDNING TIL DEMPNING OG ABSORPSJON AV LYD I LOKALER.
摘要
申请公布号
NO158762(B)
申请公布日期
1988.07.18
申请号
NO19810001219
申请日期
1981.04.08
申请人
BYGGNADSFYSIK A & K AB
发明人
HELLSTROEM, PER ANDERS
分类号
G10K11/16;E04B1/82;E04B1/84;E04B1/99;(IPC1-7):E04B1/84
主分类号
G10K11/16
代理机构
代理人
主权项
地址
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