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发明名称
Экономайзер
摘要
申请公布号
SU21149(A1)
申请公布日期
1931.07.31
申请号
SU19300066380
申请日期
1930.03.15
申请人
SILNITSKIJ A.K.
发明人
SILNITSKIJ A.K.
分类号
F22D1/28
主分类号
F22D1/28
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代理人
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