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发明名称
Rotary pump
摘要
申请公布号
US2393690(A)
申请公布日期
1946.01.29
申请号
US19410389785
申请日期
1941.04.22
申请人
JOHNSON JAMES P
发明人
JOHNSON JAMES P.
分类号
F04C18/344;F04C29/02
主分类号
F04C18/344
代理机构
代理人
主权项
地址
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