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发明名称
Improvements in or relating to breathing apparatus
摘要
申请公布号
GB0921222(D0)
申请公布日期
2010.01.20
申请号
GB20090021222
申请日期
2009.12.03
申请人
SHELFORD, HENRY G C
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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