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发明名称
Gasproof receptacle
摘要
申请公布号
US2568518(A)
申请公布日期
1951.09.18
申请号
US19470768765
申请日期
1947.08.15
申请人
THE OHIO BRASS COMPANY
发明人
SMITH EDWARD P.
分类号
E21F9/00;H01H9/04
主分类号
E21F9/00
代理机构
代理人
主权项
地址
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