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经营范围
发明名称
Flooring and flooring members
摘要
申请公布号
US2852112(A)
申请公布日期
1958.09.16
申请号
US19550542330
申请日期
1955.10.24
申请人
NATIONAL STEEL CORPORATION
发明人
SHAY RAYMOND H.
分类号
E04B5/10
主分类号
E04B5/10
代理机构
代理人
主权项
地址
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