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发明名称
Gypsum lumber
摘要
申请公布号
US1854396(A)
申请公布日期
1932.04.19
申请号
US19310523523
申请日期
1931.03.18
申请人
STRUCTURAL GYPSUM CORPORATION
发明人
DAVIS CLARKE F.
分类号
E04C2/04
主分类号
E04C2/04
代理机构
代理人
主权项
地址
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