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发明名称
Приспособление для очистки от накипи водогрейных труб паровых котлов
摘要
申请公布号
SU21159(A1)
申请公布日期
1931.07.31
申请号
SU19300069706
申请日期
1930.05.08
申请人
MELNIKOV I.E.
发明人
MELNIKOV I.E.
分类号
F28G3/12
主分类号
F28G3/12
代理机构
代理人
主权项
地址
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