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发明名称
Product and process
摘要
申请公布号
US2739076(A)
申请公布日期
1956.03.20
申请号
US19520275234
申请日期
1952.03.06
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
ILER RALPH K.
分类号
C01B33/113
主分类号
C01B33/113
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代理人
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