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发明名称
Линейка для перевода масштабов
摘要
申请公布号
SU82245(A1)
申请公布日期
1949.11.30
申请号
SU19470354719
申请日期
1947.03.17
申请人
KIREEV B.P.
发明人
KIREEV B.P.
分类号
B43L7/00
主分类号
B43L7/00
代理机构
代理人
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