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发明名称
Certain thio derivatives of alpha alkylidene cyanoacetic esters
摘要
申请公布号
US2534112(A)
申请公布日期
1950.12.12
申请号
US19490117265
申请日期
1949.09.22
申请人
ILFORD LIMITED
发明人
EDWARDS HARRY DEREK
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