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发明名称
Pump plunger
摘要
申请公布号
US2462257(A)
申请公布日期
1949.02.22
申请号
US19440554801
申请日期
1944.09.19
申请人
CUNNINGHAM JOHN D
发明人
CUNNINGHAM JOHN D.
分类号
F04B53/14
主分类号
F04B53/14
代理机构
代理人
主权项
地址
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