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经营范围
发明名称
FILTER STRUCTURE
摘要
申请公布号
CA724987(A)
申请公布日期
1966.01.04
申请号
CAD724987
申请日期
申请人
BIRD MACHINE COMPANY
发明人
JOHN T. ROOS
分类号
主分类号
代理机构
代理人
主权项
地址
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