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发明名称
ACOUSTIC CEILING
摘要
申请公布号
CA741500(A)
申请公布日期
1966.08.30
申请号
CAD741500
申请日期
申请人
ARMSTRONG CORK COMPANY
发明人
STEPHEN T. ALEXIEFF
分类号
主分类号
代理机构
代理人
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