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发明名称
Rotary pump or motor
摘要
申请公布号
US1869053(A)
申请公布日期
1932.07.26
申请号
US19300440796
申请日期
1930.04.01
申请人
DUDLEY EDMOND R
发明人
DUDLEY EDMOND R.
分类号
F04C2/44
主分类号
F04C2/44
代理机构
代理人
主权项
地址
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