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发明名称
Устройство для ввода воздуха в окислительный куб при производстве нефтебитума из гудронов
摘要
申请公布号
SU74191(A1)
申请公布日期
1948.11.30
申请号
SU19480385666
申请日期
1948.03.03
申请人
AJZENSHTEJN P.G.
发明人
AJZENSHTEJN P.G.
分类号
C10C3/12
主分类号
C10C3/12
代理机构
代理人
主权项
地址
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