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经营范围
发明名称
Improvements in valve gear for reversible reciprocating fluid pressure engines, especially for locomotives
摘要
申请公布号
GB507562(A)
申请公布日期
1939.06.19
申请号
GB19370032861
申请日期
1937.11.29
申请人
HUGO JOHANNES LENTZ
发明人
分类号
F01L31/16
主分类号
F01L31/16
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