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发明名称
POSITIVE DISPLACEMENT INTERNALLY-MESHING ROTARY SCREW PUMP AND DRIVE COUPLING THEREFOR
摘要
申请公布号
GB1475242(A)
申请公布日期
1977.06.01
申请号
GB19750033790
申请日期
1975.08.13
申请人
ALLEN C
发明人
分类号
F04C2/107;(IPC1-7):F04C1/06
主分类号
F04C2/107
代理机构
代理人
主权项
地址
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