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发明名称
BED VENTILATION DEVICE
摘要
申请公布号
CA593014(A)
申请公布日期
1960.02.23
申请号
CAD593014
申请日期
申请人
HELMER O.V. HEDBERG
发明人
HELMER O.V. HEDBERG
分类号
主分类号
代理机构
代理人
主权项
地址
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