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发明名称
ELEKTRONISCHES STETHOSKOP.
摘要
申请公布号
DE1945652(U)
申请公布日期
1966.09.08
申请号
DE196600D3788U
申请日期
1966.07.14
申请人
DOUGLAS AIRCRAFT COMPANY, INC.
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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