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发明名称
Способ очистки черного древесного порошка
摘要
申请公布号
SU19624(A1)
申请公布日期
1931.03.31
申请号
SU19280024162
申请日期
1928.02.09
申请人
CHISTOV I.F.
发明人
CHISTOV I.F.
分类号
C07C53/10;C07C51/47
主分类号
C07C53/10
代理机构
代理人
主权项
地址
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