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发明名称
OXYGEN BREATHING DEVICE
摘要
申请公布号
KR910009058(Y1)
申请公布日期
1991.11.25
申请号
KR19890008504U
申请日期
1989.06.20
申请人
CHANG JOM-SOK
发明人
CHANG JOM-SOK
分类号
A62B7/02;(IPC1-7):A62B7/02
主分类号
A62B7/02
代理机构
代理人
主权项
地址
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