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发明名称
Bridge and flooring therefor
摘要
申请公布号
US2308943(A)
申请公布日期
1943.01.19
申请号
US19390289954
申请日期
1939.08.14
申请人
TIETIG
发明人
TIETIG CHESTER;HENRY HARRY N.
分类号
E01D2/02;E01D19/12
主分类号
E01D2/02
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代理人
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