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发明名称
Separators
摘要
申请公布号
US3140937(A)
申请公布日期
1964.07.14
申请号
US19600031402
申请日期
1960.05.24
申请人
DOUGLAS AIRCRAFT COMPANY, INC.
发明人
HOFFSTROM BO N.
分类号
B04C5/081
主分类号
B04C5/081
代理机构
代理人
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