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发明名称
Acoustical building structure
摘要
申请公布号
US1997582(A)
申请公布日期
1935.04.16
申请号
US19320626755
申请日期
1932.07.30
申请人
UNITED STATES GYPSUM COMPANY
发明人
HEEREN ARTHUR A.;GIBSON OLIVER E.
分类号
E04B9/26
主分类号
E04B9/26
代理机构
代理人
主权项
地址
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