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发明名称
RESPIRATOR FACE MASK
摘要
申请公布号
GB8317592(D0)
申请公布日期
1983.08.03
申请号
GB19830017592
申请日期
1983.06.29
申请人
USD CORPORATION
发明人
分类号
A62B18/00;A62B18/02;A62B18/08;A62B18/10;F16K15/14;(IPC1-7):A62B7/10
主分类号
A62B18/00
代理机构
代理人
主权项
地址
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