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发明名称
Surface covering
摘要
申请公布号
US2323299(A)
申请公布日期
1943.07.06
申请号
US19410387564
申请日期
1941.04.09
申请人
CRAIG EDWARD L
发明人
CRAIG EDWARD L.
分类号
E04F13/14
主分类号
E04F13/14
代理机构
代理人
主权项
地址
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