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发明名称
Perfectionnements apportés aux solutions de pyroxyline et aux procédés de fabrication de ces solutions
摘要
申请公布号
FR697780(A)
申请公布日期
1931.01.22
申请号
FRD697780
申请日期
1930.06.23
申请人
HAMMERMILL PAPER COMPANY
发明人
分类号
D01F2/26
主分类号
D01F2/26
代理机构
代理人
主权项
地址
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