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经营范围
发明名称
Preparation of formaldehyde
摘要
申请公布号
US2467223(A)
申请公布日期
1949.04.12
申请号
US19450572439
申请日期
1945.01.11
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
PAYNE WILLARD A.
分类号
C07C45/32
主分类号
C07C45/32
代理机构
代理人
主权项
地址
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