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摘要
申请公布号
US2723054(A)
申请公布日期
1955.11.08
申请号
US19510249718
申请日期
1951.10.04
申请人
NATIONAL LEAD COMPANY
发明人
LOUDEN EDGAR W.;HOLLERON WILLIAM K.
分类号
B65D33/38;E21B21/06
主分类号
B65D33/38
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