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经营范围
发明名称
Improvements in or relating to oxygen breathing apparatus
摘要
申请公布号
GB754305(A)
申请公布日期
1956.08.08
申请号
GB19540029122
申请日期
1954.10.08
申请人
MINE SAFETY APPLIANCES COMPANY
发明人
HAMILTON WILLIAM CRAIG
分类号
A62B7/08
主分类号
A62B7/08
代理机构
代理人
主权项
地址
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