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发明名称
Фланцевая заглушка для ревизионных устройств в канализационной сети
摘要
申请公布号
SU41437(A1)
申请公布日期
1935.01.31
申请号
SU19310094990
申请日期
1931.09.24
申请人
NESMEYANOV V.A.
发明人
NESMEYANOV V.A.
分类号
E03F5/20;F16L45/00
主分类号
E03F5/20
代理机构
代理人
主权项
地址
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