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发明名称
Urea-formaldehyde condensation products
摘要
申请公布号
US2140561(A)
申请公布日期
1938.12.20
申请号
US19330684561
申请日期
1933.08.10
申请人
LEONARD SMIDTH
发明人
SMIDTH LEONARD
分类号
C08G12/12
主分类号
C08G12/12
代理机构
代理人
主权项
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