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经营范围
发明名称
Breathing apparatus
摘要
申请公布号
US2222971(A)
申请公布日期
1940.11.26
申请号
US19380209704
申请日期
1938.05.24
申请人
WRIGHT THOMAS F
发明人
WRIGHT THOMAS F.
分类号
A62B18/00
主分类号
A62B18/00
代理机构
代理人
主权项
地址
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