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发明名称
Method of making screw pumps
摘要
申请公布号
US3247580(A)
申请公布日期
1966.04.26
申请号
US19620193507
申请日期
1962.05.09
申请人
DE LAVAL TURBINE INC.
发明人
SENNET MORGAN B.
分类号
B23F15/08;F04C2/16
主分类号
B23F15/08
代理机构
代理人
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