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发明名称
Pump valve
摘要
申请公布号
US2068481(A)
申请公布日期
1937.01.19
申请号
US19320611497
申请日期
1932.05.16
申请人
COLIN BROWN
发明人
BROWN COLIN
分类号
F04B39/10
主分类号
F04B39/10
代理机构
代理人
主权项
地址
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