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发明名称
Adjustable volume control pump and two-stage pump
摘要
申请公布号
US2261471(A)
申请公布日期
1941.11.04
申请号
US19390309066
申请日期
1939.12.13
申请人
ROSS B. TREER
发明人
HULL EDWIN J.
分类号
F01B3/02;F04B1/14;F04B7/04;F04B49/12
主分类号
F01B3/02
代理机构
代理人
主权项
地址
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