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发明名称
An improved dual function respirator/breathing apparatus
摘要
申请公布号
GB9812861(D0)
申请公布日期
1998.08.12
申请号
GB19980012861
申请日期
1998.06.16
申请人
HOWIE, ROBIN M
发明人
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主分类号
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代理人
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