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发明名称
Floor structure
摘要
申请公布号
US1995496(A)
申请公布日期
1935.03.26
申请号
US19330677360
申请日期
1933.06.24
申请人
A. O. SMITH CORPORATION
发明人
BURGESS EDWARD W.
分类号
E01D19/12
主分类号
E01D19/12
代理机构
代理人
主权项
地址
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