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发明名称
Procédé de fabrication de pâte à papier à partir de l'alfa ou de matières premières analogues
摘要
申请公布号
FR699249(A)
申请公布日期
1931.02.12
申请号
FRD699249
申请日期
1930.07.23
申请人
发明人
HILPERT RICHARD-SIEGFRIED
分类号
D21C3/00
主分类号
D21C3/00
代理机构
代理人
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