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发明名称
Identifying substance
摘要
申请公布号
US2348639(A)
申请公布日期
1944.05.09
申请号
US19410412962
申请日期
1941.09.30
申请人
O'BRIEN JOLLY W
发明人
O'BRIEN JOLLY W.
分类号
C09K8/18;G09F3/00
主分类号
C09K8/18
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