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经营范围
发明名称
Procédé de préparation de substances tannantes synthétiques
摘要
申请公布号
FR720712(A)
申请公布日期
1932.02.23
申请号
FRD720712
申请日期
1930.10.17
申请人
PROGIL
发明人
分类号
C14C3/20
主分类号
C14C3/20
代理机构
代理人
主权项
地址
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