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发明名称
Pump
摘要
申请公布号
US2122823(A)
申请公布日期
1938.07.05
申请号
US19370118982
申请日期
1937.01.04
申请人
OVERALL ERNEST C
发明人
OVERALL ERNEST C.
分类号
F04B47/04
主分类号
F04B47/04
代理机构
代理人
主权项
地址
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