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发明名称
Hydro-pneumatic scavenging pump regulator for deep-boring equipments
摘要
申请公布号
GB479644(A)
申请公布日期
1938.02.09
申请号
GB19370008584
申请日期
1937.03.24
申请人
HYDRAULIK GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
发明人
分类号
F04D13/16
主分类号
F04D13/16
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代理人
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