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发明名称
Acoustical tile
摘要
申请公布号
US3307651(A)
申请公布日期
1967.03.07
申请号
US19660530116
申请日期
1966.02.25
申请人
UNITED STATES GYPSUM COMPANY
发明人
PODGURSKI JOHN S.
分类号
E04B9/04
主分类号
E04B9/04
代理机构
代理人
主权项
地址
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