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经营范围
发明名称
Vapor vacuum pump
摘要
申请公布号
US2404023(A)
申请公布日期
1946.07.16
申请号
US19450596036
申请日期
1945.05.26
申请人
PAUL ALEXANDER;CECIL WHILEY
发明人
ALEXANDER PAUL;WHILEY CECIL
分类号
F04F9/00
主分类号
F04F9/00
代理机构
代理人
主权项
地址
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