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发明名称
Vacuum pump
摘要
申请公布号
US1879947(A)
申请公布日期
1932.09.27
申请号
US19300465463
申请日期
1930.07.03
申请人
EUGENE L. NUSSER;REINHOLD A. KOPP
发明人
PETER JOSEPH
分类号
F04B37/16;F04B39/14
主分类号
F04B37/16
代理机构
代理人
主权项
地址
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