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摘要
申请公布号
SU64672(A1)
申请公布日期
1944.11.30
申请号
SU19400318879
申请日期
1940.12.25
申请人
GUREVICH E.S.
发明人
GUREVICH E.S.
分类号
C14C3/00
主分类号
C14C3/00
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