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经营范围
发明名称
FALSE CEILINGS FOR SUPPRESSION OF SOUND TRANSMISSION BUILDINGS
摘要
申请公布号
GB1564709(A)
申请公布日期
1980.04.10
申请号
GB19760046984
申请日期
1976.11.11
申请人
ARMSTRONG CORK CO
发明人
分类号
E04B9/00;(IPC1-7):E04B5/52
主分类号
E04B9/00
代理机构
代理人
主权项
地址
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