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发明名称
Аппарат для поддержания вакуума в закрытых сосудах
摘要
申请公布号
SU72549(A1)
申请公布日期
1947.11.30
申请号
SU19460350348
申请日期
1946.10.15
申请人
CHERNYJ A.A.
发明人
CHERNYJ A.A.
分类号
F04D13/00
主分类号
F04D13/00
代理机构
代理人
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