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发明名称
Центробежный регулятор скорости, действующий торможением
摘要
申请公布号
SU12638(A1)
申请公布日期
1930.01.31
申请号
SU19270014992
申请日期
1927.02.21
申请人
MARKOV D.V.
发明人
MARKOV D.V.
分类号
E21B33/13
主分类号
E21B33/13
代理机构
代理人
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地址
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