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发明名称
Счетная линейка для расчета шихты
摘要
申请公布号
SU51639(A1)
申请公布日期
1936.11.30
申请号
SU19350181556
申请日期
1935.12.03
申请人
IVENETSKIJ V.M.;KHAJKIN A.M.
发明人
IVENETSKIJ V.M.;KHAJKIN A.M.
分类号
G06G1/06
主分类号
G06G1/06
代理机构
代理人
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