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发明名称
Дробопитатель
摘要
申请公布号
SU35771(A1)
申请公布日期
1934.04.30
申请号
SU19320115114
申请日期
1932.09.04
申请人
GOLOVIN B.P.
发明人
GOLOVIN B.P.
分类号
E21B7/16
主分类号
E21B7/16
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代理人
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