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经营范围
发明名称
Aqueous formaldehyde distillation
摘要
申请公布号
US2581881(A)
申请公布日期
1952.01.08
申请号
US19480032306
申请日期
1948.06.11
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
PYLE CYRUS;LANE JAMES A.
分类号
C07C47/04
主分类号
C07C47/04
代理机构
代理人
主权项
地址
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