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发明名称
Линейка для разбивки координатной сетки
摘要
申请公布号
SU22903(A1)
申请公布日期
1931.09.30
申请号
SU19300066038
申请日期
1930.03.10
申请人
SHVARTS U.O.
发明人
SHVARTS U.O.
分类号
B43L7/08
主分类号
B43L7/08
代理机构
代理人
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地址
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