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发明名称
Polymeric color formers
摘要
申请公布号
US2489655(A)
申请公布日期
1949.11.29
申请号
US19480019155
申请日期
1948.04.05
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
MARTIN ELMORE LOUIS
分类号
C08F8/30;G03C7/327
主分类号
C08F8/30
代理机构
代理人
主权项
地址
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