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经营范围
发明名称
Air pump
摘要
申请公布号
US1831756(A)
申请公布日期
1931.11.10
申请号
US19290386332
申请日期
1929.08.16
申请人
LEOPOLD SPIRA
发明人
SPIRA LEOPOLD
分类号
F04B33/00
主分类号
F04B33/00
代理机构
代理人
主权项
地址
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