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发明名称
False ceiling with removable sections
摘要
申请公布号
US2957556(A)
申请公布日期
1960.10.25
申请号
US19570657105
申请日期
1957.05.06
申请人
TYKOL WILLIAM J
发明人
TYKOL WILLIAM J.
分类号
E04B9/30
主分类号
E04B9/30
代理机构
代理人
主权项
地址
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