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经营范围
发明名称
Способ изготовления минерального войлока
摘要
申请公布号
SU85973(A1)
申请公布日期
1949.11.30
申请号
SU19490396909
申请日期
1949.05.07
申请人
VOLCHANSKAYA E.A.;GRIGOREV P.G.;EPSHTEJN A.S.
发明人
VOLCHANSKAYA E.A.;GRIGOREV P.G.;EPSHTEJN A.S.
分类号
C03C25/34
主分类号
C03C25/34
代理机构
代理人
主权项
地址
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