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发明名称
Hold-fast construction
摘要
申请公布号
US2699586(A)
申请公布日期
1955.01.18
申请号
US19510240971
申请日期
1951.08.08
申请人
DRAVO CORPORATION
发明人
DORSEY JOSEPH W.;LIEBMAN ARNO J.;OSBOURNE ALFRED S.
分类号
B63B21/56
主分类号
B63B21/56
代理机构
代理人
主权项
地址
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