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发明名称
Suspended ceiling construction
摘要
申请公布号
US1854968(A)
申请公布日期
1932.04.19
申请号
US19310525064
申请日期
1931.03.25
申请人
VENZIE FREDERICK M
发明人
VENZIE FREDERICK M.
分类号
E04B9/24
主分类号
E04B9/24
代理机构
代理人
主权项
地址
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