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经营范围
发明名称
FILTERING DEVICE
摘要
申请公布号
CA549974(A)
申请公布日期
1957.12.10
申请号
CAD549974
申请日期
申请人
GENERAL MOTORS CORPORATION
发明人
JOSEPH N. HELLER;WESLEY W. MCMULLEN
分类号
主分类号
代理机构
代理人
主权项
地址
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