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发明名称
AIR VENT
摘要
申请公布号
CA406884(A)
申请公布日期
1942.08.18
申请号
CAD406884
申请日期
申请人
ROBERT MITCHELL CO. LIMITED
发明人
HAROLD M WOELFEL
分类号
主分类号
代理机构
代理人
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