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发明名称
Видоизменение приспособления, указанного в п. 1 патента № 18774 для регулирования перфорировки бумаг
摘要
申请公布号
SU18776(A1)
申请公布日期
1931.01.31
申请号
SU19290044276
申请日期
1929.04.04
申请人
ALEKSEEV F.P.
发明人
ALEKSEEV F.P.
分类号
B26F1/10
主分类号
B26F1/10
代理机构
代理人
主权项
地址
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