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发明名称
摘要
申请公布号
DE9105183(U1)
申请公布日期
1991.06.20
申请号
DE19910005183U
申请日期
1991.02.01
申请人
ARMSTRONG WORLD INDUSTRIES GMBH, 4400 MUENSTER, DE
发明人
分类号
E04B9/04
主分类号
E04B9/04
代理机构
代理人
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