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发明名称
ANORDNING OG FREMGANGSMAATE VED LYDDEMPNING AV PARALLELT-LIGGENDE VENTILASJONSKANALER I BJELKELAGSELEMENTER
摘要
申请公布号
NO152947(B)
申请公布日期
1985.09.09
申请号
NO19810001847
申请日期
1981.06.01
申请人
STRAENGBETONG, A B,
发明人
ANDERSSON, LARS OLOF,
分类号
E04B1/82;E04B1/84;F24F13/24;(IPC1-7):E04B1/82
主分类号
E04B1/82
代理机构
代理人
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