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经营范围
发明名称
Breathing apparatus
摘要
申请公布号
US1880998(A)
申请公布日期
1932.10.04
申请号
US19280296681
申请日期
1928.08.01
申请人
STURTEVANT HAROLD V
发明人
STURTEVANT HAROLD V.
分类号
A62B9/06
主分类号
A62B9/06
代理机构
代理人
主权项
地址
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