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经营范围
发明名称
Vacuum condensation pump
摘要
申请公布号
US1775425(A)
申请公布日期
1930.09.09
申请号
US19300422434
申请日期
1930.01.21
申请人
DURDIN JR AUGUSTUS C
发明人
JR. AUGUSTUS C. DURDIN,
分类号
F01B25/00
主分类号
F01B25/00
代理机构
代理人
主权项
地址
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