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发明名称
УСТРОЙСТВО ДЛЯ ЗАЩИТЫ МЕТАЛЛА ОТ ВТОРИЧНОГО ОКИСЛЕНИЯ ПРИ ЕГО РАЗЛИВКЕ
摘要
申请公布号
RU7353(U1)
申请公布日期
1998.08.16
申请号
RU19970118909U
申请日期
1997.11.13
申请人
发明人
分类号
B22D41/08
主分类号
B22D41/08
代理机构
代理人
主权项
地址
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