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发明名称
Pump piston
摘要
申请公布号
US1789318(A)
申请公布日期
1931.01.20
申请号
US19290369085
申请日期
1929.06.07
申请人
FREDERICK MCMAHON WILLIAM
发明人
MCMAHON WILLIAM FREDERICK
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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